CVE-2026-43512

Published May 12, 2026

Last updated 5 months ago

CVSS critical 9.8
onapsis
Server
Port (80)

Overview

Description
DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0. Older unsupported versions any also be affect Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Source
security@apache.org
NVD status
Analyzed
Products
tomcat

Risk scores

CVSS 3.1

Type
Secondary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

security@apache.org
CWE-592

Social media

Hype score
Not currently trending
  1. Reviewing Tomcat auth flows? Look for CVE-2026-43512 in tomcat-coyote. Digest authentication bypass requires immediate dependency updates. #CVE #Tomcat #coyote

    @Nishanth_KJ

    24 Sept 2026

    12 Impressions

    0 Retweets

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  2. ⚠️ Vulnerabilidades en productos Atlassian ❗ CVE-2026-43515 ❗ CVE-2026-43512 ❗ CVE-2026-41293 ➡️ Más info: https://t.co/nzy28Ih3ZN https://t.co/g823YVvIKX

    @CERTpy

    3 Jul 2026

    221 Impressions

    0 Retweets

    1 Like

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  3. Apache Tomcat: Digest authenticator will authenticate any unknown user CVE: CVE-2026-43512 PT ID: PT-2026-40071 Vendor: Apache Software Foundation Product: Apache Tomcat CVSS: 9.8 Credits: n/a Description: Authentication Bypass Issues vulnerability in digest authentication in

    @ptdbugs

    9 Jun 2026

    64 Impressions

    0 Retweets

    0 Likes

    2 Bookmarks

    0 Replies

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  4. 🚨 New Apache Tomcat flaws uncovered - and some could impact authentication & request handling. ⚠️ CVE-2026-43515 – Authorization bypass ⚠️ CVE-2026-41293 – HTTP/2 input validation issue ⚠️ CVE-2026-43512 – Digest authentication bypass If Tomcat is inter

    @UpwindMDR

    14 May 2026

    75 Impressions

    0 Retweets

    1 Like

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    0 Replies

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  5. Apache Tomcatの脆弱性(Moderate: CVE-2026-43512, CVE-2026-43515, Low: CVE-2026-41284, CVE-2026-41293, CVE-2026-42498, CVE-2026-43513, CVE-2026-43514) #sios_tech #security #vulnerability #セキュリティ #脆弱性 #linux #tomcat #mod_jk #apache https://t.co/E03V8uet4s

    @omokazuki

    12 May 2026

    117 Impressions

    0 Retweets

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