{"id":"CVE-2026-47191","title":"kas is a setup tool for bitbake based projects","summary":"kas is a setup tool for bitbake based projects. Prior to version 5.3, when relying solely on a git commit ID (SHA-1 or SHA-256) to qualify if a checkout of a repository is equivalent to the state validated while adding its commit ID to a…","severity":"low","cwe":["CWE-347"],"vendor":"kas","product":"kas","affected":["kas < 5.3"],"patched":["kas 5.3"],"published":"2026-08-14","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:09:01.757","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-47191","references":[{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/kas/PYSEC-2026-2544.yaml","label":"security-advisories@github.com"},{"url":"https://github.com/siemens/kas/commit/4cb4a3d01122ffaec9feaae768a5814092f6f9b5","label":"security-advisories@github.com"},{"url":"https://github.com/siemens/kas/security/advisories/GHSA-qjwp-hrq6-r26r","label":"security-advisories@github.com"},{"url":"https://github.com/siemens/kas"}],"tags":["nvd","osv","pip"],"epss":0.00159,"epssPercentile":0.05496,"aliases":["GHSA-qjwp-hrq6-r26r","PYSEC-2026-2544"],"ecosystem":"pip","ingestedAt":"2026-07-13T18:58:02.068Z","slug":"CVE-2026-47191","body":"## Overview\n\nkas is a setup tool for bitbake based projects. Prior to version 5.3, when relying solely on a git commit ID (SHA-1 or SHA-256) to qualify if a checkout of a repository is equivalent to the state validated while adding its commit ID to a kas configuration, users may be tricked to check out a branch of the same name from this repository. This implies that the referenced repository has been taken over by an attacker and modified to carry such a branch. SHA-1 commits may also be replaced by creating hash collisions, so the primary impact of this issue is on SHA-256 commit IDs. Version 5.3 fixes the issue. As a workaround, avoid relying solely on the commit ID for integrity validation of a repository that might become under control of a malicious 3rd party. If available, additional validate cryptographically signed commits or tags. Alternatively, mirror the repository to a save place, validate its integrity, and use this instead of the original one.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-47191)\n\nAffected packages:\n\n- `kas < 5.3`\n\nPatched in:\n\n- `kas 5.3`\n\nSource: https://osv.dev/vulnerability/GHSA-qjwp-hrq6-r26r","depth":"sunlit","depthScore":14,"depthScoreParts":{"impact":13.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}