9.6

CVE-2026-45570: go-git_project go-git Improper Encoding or Escaping of Output

CVSS: 9.6v3.1CriticalAnalyzed
AliasesUBUNTU-CVE-2026-45570DEBIAN-CVE-2026-45570CGA-23mm-vj96-6qh7
Published 27-05-2026Last modified 28-05-2026

Vulnerability summary

CVE-2026-45570 is a critical (CVSS 9.6) Improper Encoding or Escaping of Output vulnerability in go-git_project go-git. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.6% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.6/10
010
Critical · v3.1 (NVD)
EPSS score
0.43%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 3

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.
  2. 28-05-2026
    Last modifiedVulnerability information updated.

Description

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.1 and 6.0.0-alpha.4, go-git's SSH transport constructs the remote exec command by wrapping the repository path in single quotes without escaping single quotes embedded inside the path. A repository path containing a single quote can therefore break out of the quoted region in the exec command and be appended as additional shell tokens. This vulnerability is fixed in 5.19.1 and 6.0.0-alpha.4.

CVSS metrics

9 scores · 7 sources · 2 versions

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

+0.06 pp

From 0.36% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard200 products
  • act< 0.2.88-r4
  • amazon-ssm-agent< 3.3.4364.0-r2
  • amazon-ssm-agent-ecs-exec< 3.3.4364.0-r2
  • amazon-ssm-agent-ecs-exec-fips< 3.3.4515.0-r0 | < 3.3.4515.0-r1
  • amazon-ssm-agent-fips< 3.3.4515.0-r1

1 vendor · 200 products · Showing 200 of 369. Use Open JSON for the complete list.

References

7 links