AI description
Automated description summarized from trusted sources.
CVE-2026-39999 describes an Authentication Bypass by Spoofing vulnerability found in Apache APISIX. This flaw allows an attacker to completely bypass authentication by exploiting specific configurations of the `jwt-auth` plugin. The vulnerability is characterized as a JWT algorithm confusion bug within the `jwt-auth` plugin. The issue impacts Apache APISIX versions from v2.2 through v3.16.0. To remediate this vulnerability, users are advised to upgrade to version v3.17.0 or later, which includes a fix for the problem.
- Description
- Authentication Bypass by Spoofing vulnerability in Apache APISIX. The attacker can completely bypass authentication capitalising on certain configurations of jwt-auth plugin. This issue affects Apache APISIX: from v2.2 through v3.16.0. Users are recommended to upgrade to version v3.17.0, which fixes the issue.
- Source
- security@apache.org
- NVD status
- Analyzed
- Products
- apisix
CVSS 4.0
- Type
- Secondary
- Base score
- 7
- Impact score
- -
- Exploitability score
- -
- Vector string
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity
- HIGH
CVSS 3.1
- Type
- Primary
- Base score
- 9.1
- Impact score
- 5.2
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity
- CRITICAL
- security@apache.org
- CWE-290
Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.
- Hype score
6
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