EUVD-2026-65224
GHSA-89ff-m8wv-p99r
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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
Network-reachable via application layer; low privilege required to invoke blame; pure confidentiality impact via arbitrary file read with no integrity or availability effect.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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
Lifecycle Timeline
3DescriptionCVE.org
GitPython versions before 3.1.59 contain an incomplete denylist in the unsafe_git_revision_options guard that omits --contents and -S options, allowing attackers to read arbitrary files by passing these options to Repo.blame(). Attackers can supply revision values like --contents=/etc/passwd to leak file contents through the blame result returned to the caller.
AnalysisAI
Arbitrary file read in GitPython versions before 3.1.59 exposes sensitive filesystem content to low-privileged network attackers through an incomplete argument-injection guard. The unsafe_git_revision_options denylist in Repo.blame() omits the --contents and -S git options, allowing attackers to supply revision values such as --contents=/etc/passwd and receive the target file's contents embedded in the blame output. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires three concurrent conditions: (1) the target application uses GitPython's Repo.blame() method, (2) user-controlled input is passed as the revision argument without independent sanitization - specifically, the application does not validate that the revision matches a safe format before calling GitPython, and (3) the attacker holds at least low-privilege access to invoke the blame functionality (confirmed by PR:L in the CVSS 4.0 vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 7.1 (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N) reflects a realistic and constrained threat: network-accessible, low-complexity exploitation requiring only low-privilege application access, yielding high confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with authenticated access to a web application that internally calls Repo.blame() with a user-supplied revision string submits a request where the revision is set to --contents=/etc/passwd. GitPython passes this string unsanitized to git blame, which interprets it as an option rather than a commit reference and reads /etc/passwd, returning its contents embedded in the blame output to the application - and ultimately to the attacker. … |
| Remediation | Upgrade GitPython to version 3.1.59 or later, which corrects the incomplete denylist by adding --contents and -S to the blocked revision options in the unsafe_git_revision_options guard. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all systems running GitPython and determine which versions are in use, prioritizing production systems and those processing sensitive repositories. …
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External POC / Exploit Code
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