CVE-2026-45022

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45022", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-08T16:58:28.896Z", "datePublished": "2026-05-27T14:54:47.872Z", "dateUpdated": "2026-05-27T15:43:32.693Z"}, "containers": {"cna": {"title": "go-git: Improper parsing of specially crafted objects may lead to inconsistent interpretation compared to upstream Git", "problemTypes": [{"descriptions": [{"cweId": "CWE-180", "lang": "en", "description": "CWE-180: Incorrect Behavior Order: Validate Before Canonicalize", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-345", "lang": "en", "description": "CWE-345: Insufficient Verification of Data Authenticity", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "baseScore": 7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/go-git/go-git/security/advisories/GHSA-389r-gv7p-r3rp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/go-git/go-git/security/advisories/GHSA-389r-gv7p-r3rp"}], "affected": [{"vendor": "go-git", "product": "go-git", "versions": [{"version": "< 5.19.0", "status": "affected"}, {"version": ">= 6.0.0-alpha.1, < 6.0.0-alpha.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-27T14:54:47.872Z"}, "descriptions": [{"lang": "en", "value": "go-git is an extensible git implementation library written in pure Go. Prior to 5.19.0 and 6.0.0-alpha.3, go-git may parse malformed Git objects in a way that differs from upstream Git. When commit or tag objects contain ambiguous or malformed headers, go-git\u2019s decoded representation may expose values differently from how Git itself would interpret or reject the same object. Additionally, go-git\u2019s commit signing and verification logic operates over commit data reconstructed from go-git\u2019s parsed representation rather than the original raw object bytes. As a result, go-git may sign or verify a commit payload that is not byte-for-byte equivalent to the object stored in the repository. This can cause a signature to appear valid for a commit whose displayed or effective metadata differs from the object that was intended to be signed. This vulnerability is fixed in 5.19.0 and 6.0.0-alpha.3."}], "source": {"advisory": "GHSA-389r-gv7p-r3rp", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-27T15:42:45.935586Z", "id": "CVE-2026-45022", "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": "2026-05-27T15:43:32.693Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-45022", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-27T15:42:45.935586Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-27T15:42:55.982Z"}}], "cna": {"title": "go-git: Improper parsing of specially crafted objects may lead to inconsistent interpretation compared to upstream Git", "source": {"advisory": "GHSA-389r-gv7p-r3rp", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE"}}], "affected": [{"vendor": "go-git", "product": "go-git", "versions": [{"status": "affected", "version": "< 5.19.0"}, {"status": "affected", "version": ">= 6.0.0-alpha.1, < 6.0.0-alpha.3"}]}], "references": [{"url": "https://github.com/go-git/go-git/security/advisories/GHSA-389r-gv7p-r3rp", "name": "https://github.com/go-git/go-git/security/advisories/GHSA-389r-gv7p-r3rp", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "go-git is an extensible git implementation library written in pure Go. Prior to 5.19.0 and 6.0.0-alpha.3, go-git may parse malformed Git objects in a way that differs from upstream Git. When commit or tag objects contain ambiguous or malformed headers, go-git\u2019s decoded representation may expose values differently from how Git itself would interpret or reject the same object. Additionally, go-git\u2019s commit signing and verification logic operates over commit data reconstructed from go-git\u2019s parsed representation rather than the original raw object bytes. As a result, go-git may sign or verify a commit payload that is not byte-for-byte equivalent to the object stored in the repository. This can cause a signature to appear valid for a commit whose displayed or effective metadata differs from the object that was intended to be signed. This vulnerability is fixed in 5.19.0 and 6.0.0-alpha.3."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-180", "description": "CWE-180: Incorrect Behavior Order: Validate Before Canonicalize"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-345", "description": "CWE-345: Insufficient Verification of Data Authenticity"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-27T14:54:47.872Z"}}}, "cveMetadata": {"cveId": "CVE-2026-45022", "state": "PUBLISHED", "dateUpdated": "2026-05-27T15:43:32.693Z", "dateReserved": "2026-05-08T16:58:28.896Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-05-27T14:54:47.872Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "go-git", "vendor": "go-git", "versions": [{"status": "affected", "version": "< 5.19.0"}, {"status": "affected", "version": ">= 6.0.0-alpha.1, < 6.0.0-alpha.3"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*", "matchCriteriaId": "30A5B96A-24B0-470D-B505-CD1AAA3B43B7", "versionEndExcluding": "5.19.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:go-git_project:go-git:6.0.0:alpha1:*:*:*:go:*:*", "matchCriteriaId": "DE1B5EEF-2491-4FDA-AAD5-338EF0AB58F2", "vulnerable": true}, {"criteria": "cpe:2.3:a:go-git_project:go-git:6.0.0:alpha2:*:*:*:go:*:*", "matchCriteriaId": "5787291E-E6E5-44DE-AAD4-CD03A7E47DB2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "go-git is an extensible git implementation library written in pure Go. Prior to 5.19.0 and 6.0.0-alpha.3, go-git may parse malformed Git objects in a way that differs from upstream Git. When commit or tag objects contain ambiguous or malformed headers, go-git\u2019s decoded representation may expose values differently from how Git itself would interpret or reject the same object. Additionally, go-git\u2019s commit signing and verification logic operates over commit data reconstructed from go-git\u2019s parsed representation rather than the original raw object bytes. As a result, go-git may sign or verify a commit payload that is not byte-for-byte equivalent to the object stored in the repository. This can cause a signature to appear valid for a commit whose displayed or effective metadata differs from the object that was intended to be signed. This vulnerability is fixed in 5.19.0 and 6.0.0-alpha.3."}], "id": "CVE-2026-45022", "lastModified": "2026-06-17T10:51:36.953", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45022", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-27T15:42:45.935586Z", "version": "2.0.3"}}]}, "published": "2026-05-27T15:16:29.980", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/go-git/go-git/security/advisories/GHSA-389r-gv7p-r3rp"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-180"}, {"lang": "en", "value": "CWE-345"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.19.0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.0.0-alpha.1,6.0.0-alpha.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "go-git", "source": "cna", "vendor": "go-git"}, "product": "go-git", "vendor": "go-git"}], "created": "2026-05-27T19:45:40.917497+00:00", "updated": "2026-05-28T03:45:05.992919+00:00", "vendors": ["go-git", "go-git$PRODUCT$go-git"]}