All vulnerabilities
CVE-2026-25660GHSA-4v9x-cqc5-j645PYSEC-2026-317

Codechecker has an authentication bypass for certain API calls

Ericsson codecheckerpipLibraries & packages
Open in ThreatlineRecord JSON
CVSS
9.3Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.45%Chance of exploitation activity in the next 30 days, higher than 38% of CVEs. Scored 27 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published24 Apr 2026Updated 27 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

Summary

Authentication bypass occurs when the URL ends with Authentication with certain function calls. This bypass allows assigning arbitrary permissions to any existing user in CodeChecker.

Details

The following functions are affected under the Authentication endpoint: getAuthorisedNames, getPermissionsForUser, hasPermission, addPermission, and removePermission.

The vulnerability allows unauthenticated users to execute these function calls with arbitrary arguments. In the logs, the exploit shows as follows:

[INFO 2026-04-23 21:23] - 127.0.0.1:42654 -- [Anonymous] POST /v6.67/Authentication@getAuthorisedNames
[INFO 2026-04-23 21:23] - 127.0.0.1:42654 -- [Anonymous] POST /v6.67/Authentication@addPermission

Impact

An attacker with a CodeChecker user can effectively acquire superuser permissions by calling these endpoints.

Patch

A patch is available at https://github.com/Ericsson/codechecker/releases/tag/v6.27.4.

Text from GitHub Advisory Database

Affected versions 34

  • codechecker, pip<= 6.27.3GitHub
  • CodeCheckeraffected: all versions through 6.27.3CVE List
  • codechecker, PyPIfrom first release, through 6.27.3OSV
  • codechecker, PyPI6.16.0OSV
  • codechecker, PyPI6.16.0a1OSV
  • codechecker, PyPI6.17.0OSV
  • codechecker, PyPI6.18.0OSV
  • codechecker, PyPI6.18.1OSV
  • codechecker, PyPI6.18.2OSV
  • codechecker, PyPI6.19.0OSV
  • codechecker, PyPI6.19.1OSV
  • codechecker, PyPI6.20.0OSV
  • codechecker, PyPI6.20.0rc1OSV
  • codechecker, PyPI6.21.0OSV
  • codechecker, PyPI6.21.0rc1OSV
  • codechecker, PyPI6.22.0OSV
  • codechecker, PyPI6.22.0rc1OSV
  • codechecker, PyPI6.22.1OSV
  • codechecker, PyPI6.22.2OSV
  • codechecker, PyPI6.22.2.post1OSV
  • codechecker, PyPI6.23.0OSV
  • codechecker, PyPI6.23.0rc2OSV
  • codechecker, PyPI6.23.1OSV
  • codechecker, PyPI6.24.0OSV
  • codechecker, PyPI6.24.1OSV
  • codechecker, PyPI6.24.2OSV
  • codechecker, PyPI6.24.4OSV
  • codechecker, PyPI6.25.0OSV
  • codechecker, PyPI6.25.1OSV
  • codechecker, PyPI6.26.0OSV
  • codechecker, PyPI6.26.1OSV
  • codechecker, PyPI6.26.2OSV
  • codechecker, PyPI6.27.1OSV
  • codechecker, PyPI6.27.3OSV

References 5