CVE-2026-85626

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.47% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 40.8% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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

NVD analysis status

Deferred. NVD last modified this record on 2026-09-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-04 14:32Z1 MO AGO

Last updated

2026-10-01 18:39Z27 DAYS AGO

Reserved

2026-09-04

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')Base

Data version

5.2

Document digest

da8c5ff9e5bb4676c185568109a6e2159cf1af0b4cacfe0e4e2d19918b125f7b

• github.comGitHub Issue #53https://github.com/cyanheads/git-mcp-server/issues/53issue-tracking
• github.comhttps://github.com/cyanheads/git-mcp-serverproduct
• github.comhttps://github.com/cyanheads/git-mcp-server/blob/v2.15.3/src/services/git/providers/cli/operations/commits/log.tstechnical-description
• github.comhttps://github.com/cyanheads/git-mcp-server/blob/v2.15.3/src/services/git/providers/cli/utils/command-builder.tstechnical-description
• www.vulncheck.comVulnCheck Advisory: git-mcp-server 2.15.1 Argument Injection via Git Ref Parametershttps://www.vulncheck.com/advisories/git-mcp-server-2.15.1-argument-injection-via-git-ref-parametersthird-party-advisory