CVE-2024-3094

Published Mar 29, 2024

Last updated 7 months ago

CVSS critical 10.0
Cloud
Container Security
Supply chain
Port (22)

Overview

Description
Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. Through a series of complex obfuscations, the liblzma build process extracts a prebuilt object file from a disguised test file existing in the source code, which is then used to modify specific functions in the liblzma code. This results in a modified liblzma library that can be used by any software linked against this library, intercepting and modifying the data interaction with this library.
Source
secalert@redhat.com
NVD status
Modified
Products
xz

Risk scores

CVSS 3.1

Type
Primary
Base score
10
Impact score
6
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

secalert@redhat.com
CWE-506

Social media

Hype score
Not currently trending
  1. Jia Tan, a ghost almost backdoored the entire internet. CVE-2024-3094. Severity 10. Then vanished forever. Now he's a coin. And he brought a game. https://t.co/bDIVd06kjQ

    @abanonded

    15 Mar 2026

    3 Impressions

    0 Retweets

    1 Like

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    2 Replies

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  2. An investigation into the XZ Utils backdoor (CVE-2024-3094), detailing Jia Tan's multi-year social engineering campaign and the technical infiltration of Linux. #CyberSecurity #Linux #XZBackdoor #OpenSource #TechThriller https://t.co/H1TBvADPou

    @galvin_8386

    12 Mar 2026

    5 Impressions

    0 Retweets

    1 Like

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  3. Top 5 Trending CVEs: 1 - CVE-2024-3094 2 - CVE-2025-43300 3 - CVE-2026-2796 4 - CVE-2026-1602 5 - CVE-2025-11411 #cve #cvetrends #cveshield #cybersecurity https://t.co/4Fua3CAN6W

    @CVEShield

    11 Mar 2026

    224 Impressions

    0 Retweets

    2 Likes

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  4. The XZ Utils backdoor (officially tracked as CVE-2024-3094) refers to one of the most serious supply-chain attacks discovered in open-source software in recent years Andres Freund noticed strange performance issues and delays in sshd login attempts while t https://t.co/jUQxSl5WeX

    @Patrick12131682

    10 Mar 2026

    45 Impressions

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  5. A Microsoft engineer noticed ssh was 500ms slower than usual. That lag just saved the entire Linux ecosystem from a state-sponsored backdoor. Here's how CVE-2024-3094 nearly pwned every SSH server on earth. 🧵 https://t.co/2krl4iRZN9

    @emredogancloud

    9 Mar 2026

    50 Impressions

    0 Retweets

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    1 Reply

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  6. الخبر مر بهدوء: مهندس مايكروسوفت لاحظ تأخير 500ms في SSH، فاكتشف backdoor في XZ Utils. ثغرة CVE-2024-3094 من هجوم supply chain مدروس سنتين، كان ممكن يسيطر على سيرفرات العالم. ت

    @Ibn_al_Mundhir

    4 Mar 2026

    36 Impressions

    0 Retweets

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  7. Day 31: Today I dove into CVE-2024-3094, the infamous XZ Utils backdoor. 🛡️💻 This wasn't just a bug; it was a multi-year "long con" supply chain attack that nearly broke the internet. Here’s what I learned: 🧵 #infosec #XZUtils

    @dheeraditya1

    28 Feb 2026

    54 Impressions

    0 Retweets

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    1 Reply

    0 Quotes

  8. Do you know story behind CVE-2024-3094? In 2024, a backdoor hidden inside the XZ compression library nearly turned Linux’s most reliable component: OpenSSH into a universal master key for millions of servers. https://t.co/7fUKhu6ziF #CyberSecurity #Linux #OpenSource #SupplyCha

    @cloudarcio

    27 Feb 2026

    6 Impressions

    0 Retweets

    1 Like

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    0 Quotes

  9. Just watched the @veritasium Youtube video on the XZ Utils backdoor (CVE-2024-3094). In 2024, while everyone was hyped about AI, a years-long "long con" almost crippled the global Linux ecosystem. It’s terrifying how close we came to a total security meltdown. 👇

    @SaikatMondal021

    26 Feb 2026

    56 Impressions

    0 Retweets

    0 Likes

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    1 Reply

    0 Quotes

  10. I remember checking VMs & build boxes for this backdoor. (screenshot from @veritasium vid). XZ Utils Backdoor (CVE-2024-3094) is a critical supply-chain vulnerability discovered in the widely used Linux compression library xz (specifically versions 5.6.0 and 5.6.1). This ht

    @oblivion314159

    26 Feb 2026

    184 Impressions

    0 Retweets

    0 Likes

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    1 Quote

  11. 🚨 CVE-2024-3094 : XZ UTILS SUPPLY CHAIN BACKDOOR AUTHENTICATION BYPASS ALERT 🚨 XZ Utils A critical unauthenticated backdoor has been discovered in XZ Utils liblzma library, allowing attackers to bypass OpenSSH authentication and gain root-level access via a malicious suppl

    @OstorlabSec

    9 Feb 2026

    63 Impressions

    0 Retweets

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  12. 🔓 CVE-2024-3094: a backdoor no XZ Utils quase comprometeu toda a infraestrutura SSH do Linux. Um mantenedor plantou código malicioso por ANOS até ser descoberto por acidente. Supply chain attacks são o novo normal. Você audita suas dependências? #infosec #cybersecurity

    @colapsodigital

    7 Feb 2026

    49 Impressions

    0 Retweets

    0 Likes

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    0 Replies

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  13. Automated multi-VM cyber-range using Ludus deploys GOAD and XZbot labs with Elastic Agent for detection validation against live CVE-2024-3094 backdoor attacks. AI-driven hunting via Elastic SIEM/XDR enhances forensics. #GOADLabs #AIHunting https://t.co/IeYDJ05Tpl

    @TweetThreatNews

    7 Feb 2026

    179 Impressions

    0 Retweets

    2 Likes

    2 Bookmarks

    0 Replies

    0 Quotes

  14. Top 5 Trending CVEs: 1 - CVE-2026-21509 2 - CVE-2026-20805 3 - CVE-2024-3094 4 - CVE-2024-1234 5 - CVE-2010-5139 #cve #cvetrends #cveshield #cybersecurity https://t.co/4Fua3CAN6W

    @CVEShield

    3 Feb 2026

    10 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  15. The #xz (CVE-2024-3094) is a perfect example of a #supplychainattack. We have a short explainer on the blog on how our Anchore Enterprise customers and OSS #Syft users can immediately report on it. https://t.co/mkCUEv3kZx https://t.co/vs5tNBAlfO

    @anchore

    12 Jan 2026

    48 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  16. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    7 Jan 2026

    211 Impressions

    1 Retweet

    3 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  17. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    21 Dec 2025

    134 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  18. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    4 Dec 2025

    233 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  19. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    17 Nov 2025

    56 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  20. 📢 𝐍𝐞𝐰 𝐂𝐕𝐄 𝐚𝐧𝐚𝐥𝐲𝐬𝐢𝐬 𝐣𝐮𝐬𝐭 𝐝𝐫𝐨𝐩𝐩𝐞𝐝! CVE-2024-3094 exposes a critical backdoor in Linux tools. Uncover how threat intelligence and supply-chain monitoring fight this hidden threat. 🌐 Explore the write-u

    @PurpleOps_io

    2 Nov 2025

    5 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  21. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    31 Oct 2025

    68 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  22. 📢 𝐇𝐨𝐭 𝐨𝐟𝐟 𝐭𝐡𝐞 𝐩𝐫𝐞𝐬𝐬: 𝐂𝐕𝐄 𝐢𝐧𝐬𝐢𝐠𝐡𝐭𝐬! Discover how CVE-2024-3094 silently compromised SSH across major Linux systems and learn how to defend with real threat intel and supply chain monitoring. 📖 Check

    @PurpleOps_io

    19 Oct 2025

    80 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  23. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    14 Oct 2025

    108 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  24. 🚨 𝐅𝐫𝐞𝐬𝐡 𝐂𝐕𝐄 𝐚𝐥𝐞𝐫𝐭 𝐣𝐮𝐬𝐭 𝐢𝐧! Learn how CVE-2024-3094 silently compromised XZ Utils in a high-stakes supply-chain backdoor threat-and what your team must do now. 🔗 Read the full breakdown → https://t.co/7GfWiDlpVk Jo

    @PurpleOps_io

    5 Oct 2025

    53 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  25. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    27 Sept 2025

    120 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  26. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    9 Sept 2025

    140 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  27. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    23 Aug 2025

    156 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  28. 35+ Docker Hub images still have XZ-Utils backdoor (CVE-2024-3094), letting attackers bypass SSH auth & run commands as root. Debian keeps backdoored images for archival reasons. Check containers for XZ-Utils 5.6.2+ to avoid this risk in CI/CD pipelines. #Cyber

    @bigmacd16684

    20 Aug 2025

    1 Impression

    0 Retweets

    0 Likes

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    0 Replies

    0 Quotes

  29. 2024年3月に発覚したXZ-Utilsのバッグドア(CVE-2024-3094)が、少なくとも35個のDocker Hub上のイメージに残存している。Binarly社報告。提供元のうちの1つはDebianだが、Debianはリスクは低いとしてイメージは非公開にはし

    @__kokumoto

    12 Aug 2025

    1116 Impressions

    3 Retweets

    8 Likes

    2 Bookmarks

    0 Replies

    1 Quote

  30. 【サプライチェーン攻撃の残存】2024年3月に発見されたXZ-Utilsバックドア(CVE-2024-3094)が、Docker

    @nakajimeeee

    12 Aug 2025

    347 Impressions

    0 Retweets

    2 Likes

    2 Bookmarks

    0 Replies

    0 Quotes

  31. The XZ-Utils backdoor (CVE-2024-3094) still exists in many Linux images on Docker Hub, including Debian’s, enabling root access via SSH bypass. Upgrade to version 5.6 to mitigate risk. #DockerSecurity #LinuxImages #Debian https://t.co/4hS7y4nTLO

    @TweetThreatNews

    12 Aug 2025

    106 Impressions

    0 Retweets

    0 Likes

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  32. ⚠️ What is the #xz utilz impact? @Josh Bressers, our VP of Security, deep dives on CVE-2024-3094 and what to do today: https://t.co/mkCUEv3kZx #opensource https://t.co/0US6CoGGTD

    @anchore

    9 Aug 2025

    76 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  33. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    6 Aug 2025

    103 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  34. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    20 Jul 2025

    177 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  35. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    3 Jul 2025

    66 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  36. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    16 Jun 2025

    66 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  37. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    30 May 2025

    73 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  38. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    13 May 2025

    73 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  39. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    26 Apr 2025

    71 Impressions

    1 Retweet

    2 Likes

    0 Bookmarks

    1 Reply

    0 Quotes

  40. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    9 Apr 2025

    46 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  41. ⚠️ What is the #xz utilz impact? @Josh Bressers, our VP of Security, deep dives on CVE-2024-3094 and what to do today: https://t.co/mkCUEv3kZx #opensource https://t.co/vFqMqD7Lku

    @anchore

    29 Mar 2025

    29 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  42. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to http

    @jrfetzer

    23 Mar 2025

    98 Impressions

    1 Retweet

    3 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  43. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to… htt

    @jrfetzer

    6 Mar 2025

    91 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  44. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to… htt

    @jrfetzer

    17 Feb 2025

    112 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  45. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to… htt

    @jrfetzer

    1 Feb 2025

    84 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  46. The #xz (CVE-2024-3094) is a perfect example of a #supplychainattack. We have a short explainer on the blog on how our Anchore Enterprise customers and OSS #Syft users can immediately report on it. https://t.co/mkCUEv3kZx https://t.co/QLApGPAq82

    @anchore

    27 Jan 2025

    17 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  47. [Link] XZ Utils backdoor (CVE-2024-3094) 解説 #Linux - Qiita>https://t.co/lT0sY4mhLf

    @tech_wiki

    20 Jan 2025

    67 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  48. XZ Utils backdoor (CVE-2024-3094) 解説 https://t.co/QuypsIy8am #Qiita

    @kk0128_

    19 Jan 2025

    426 Impressions

    0 Retweets

    5 Likes

    2 Bookmarks

    0 Replies

    0 Quotes

  49. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to… htt

    @jrfetzer

    16 Jan 2025

    126 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  50. See how SentinelOne Singularity XDR tackles the xz backdoor (CVE-2024-3094), discovered March 29, 2024, affecting Linux's xz libraries. Key Points: Targets Debian, Fedora via SSH daemon/liblzma Exploits OSS supply chain vulnerabilities Shows even open-source isn't immune to… htt

    @jrfetzer

    5 Jan 2025

    73 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    1 Reply

    0 Quotes

Configurations

References

Sources include official advisories and independent security research.