4.3

CVE-2026-25934: go-git improperly verifies data integrity values for .idx and .pack files

Analyzed
AliasesUBUNTU-CVE-2026-25934DEBIAN-CVE-2026-25934CGA-2233-m82r-9wg7
Published 09-02-2026Last modified 11-02-2026

Vulnerability summary

CVE-2026-25934 is a medium (CVSS 4.3) vulnerability in go-git_project go-git. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 13 · Related 14
OPENSUSE-SU-2026:10618-1OPENSUSE-SU-2026:10651-1OPENSUSE-SU-2026:11694-1OPENSUSE-SU-2026:21079-1OPENSUSE-SU-2026:21483-1SUSE-SU-2026:0757-1

Timeline

  1. 09-02-2026
    PublishedVulnerability first disclosed.
  2. 11-02-2026
    Last modifiedVulnerability information updated.

Description

go-git is a highly extensible git implementation library written in pure Go. Prior to 5.16.5, a vulnerability was discovered in go-git whereby data integrity values for .pack and .idx files were not properly verified. This resulted in go-git potentially consuming corrupted files, which would likely result in unexpected errors such as object not found. For context, clients fetch packfiles from upstream Git servers. Those files contain a checksum of their contents, so that clients can perform integrity checks before consuming it. The pack indexes (.idx) are generated locally by go-git, or the git cli, when new .pack files are received and processed. The integrity checks for both files were not being verified correctly. This vulnerability is fixed in 5.16.5.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard200 products
  • amazon-ssm-agent< 3.3.3270.0-r5
  • amazon-ssm-agent-ecs-exec< 3.3.3270.0-r5
  • amazon-ssm-agent-ecs-exec-fips< 3.3.3270.0-r6
  • amazon-ssm-agent-fips< 3.3.3270.0-r6
  • apko< 1.1.6-r1

1 vendor · 200 products · Showing 200 of 298

References

9 links