{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47191","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-18T22:07:37.435Z","datePublished":"2026-08-14T16:35:48.128Z","dateUpdated":"2026-08-18T02:10:29.632Z"},"containers":{"cna":{"title":"kas checks out SHA-like git branches as valid commits","problemTypes":[{"descriptions":[{"cweId":"CWE-347","lang":"en","description":"CWE-347: Improper Verification of Cryptographic Signature","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":2.1,"baseSeverity":"LOW","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/siemens/kas/security/advisories/GHSA-qjwp-hrq6-r26r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/siemens/kas/security/advisories/GHSA-qjwp-hrq6-r26r"},{"name":"https://github.com/siemens/kas/commit/4cb4a3d01122ffaec9feaae768a5814092f6f9b5","tags":["x_refsource_MISC"],"url":"https://github.com/siemens/kas/commit/4cb4a3d01122ffaec9feaae768a5814092f6f9b5"},{"name":"https://github.com/pypa/advisory-database/tree/main/vulns/kas/PYSEC-2026-2544.yaml","tags":["x_refsource_MISC"],"url":"https://github.com/pypa/advisory-database/tree/main/vulns/kas/PYSEC-2026-2544.yaml"}],"affected":[{"vendor":"siemens","product":"kas","versions":[{"version":"< 5.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-14T16:35:48.128Z"},"descriptions":[{"lang":"en","value":"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 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."}],"source":{"advisory":"GHSA-qjwp-hrq6-r26r","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-18T02:10:17.022365Z","id":"CVE-2026-47191","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-18T02:10:29.632Z"}}]}}