CVE-2026-45570

CRITICALNVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.6 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 72% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.6Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
9.6
EG Score
9.6(medium)
EPSS
28.7%
KEV
Not listed

Published

May 19, 2026

Last Modified

June 4, 2026

Advisory Details (1)

Auto-updated Jun 4, 2026
Patch available. Sources: github.
github Patch Available

Improper single-quote escaping in go-git SSH transport · Advisory · go-git/go-git · GitHub

https://github.com/go-git/go-git/security/advisories/GHSA-m7cr-m3pv-hgrp

Vendor Advisories for CVE-2026-45570(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(3 across 1 ecosystem)
Go(3)
PackageVulnerable rangeFixed inDependents
github.com/go-git/go-git———
github.com/go-git/go-git/v5—5.19.1—
github.com/go-git/go-git/v6—6.0.0-alpha.4—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 75× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 135 total refreshes for this CVE.

  1. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-08 15:16 UTCEPSS rescore
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  18. 2026-06-28 04:50 UTCEG score recompute
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  24. 2026-06-26 19:48 UTCEG score recompute
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  1. 2026-06-25 20:55 UTCEG score recompute
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  3. 2026-06-25 13:49 UTCEPSS rescore
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  5. 2026-06-23 21:33 UTCEPSS rescore
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  15. 2026-06-18 03:49 UTCEG score recompute
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  18. 2026-06-17 17:53 UTCEPSS rescore
  19. 2026-06-17 15:35 UTCEG score recompute
  20. 2026-06-17 11:46 UTCEG score recompute
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  24. 2026-06-16 17:52 UTCEPSS rescore
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  26. 2026-06-16 06:33 UTCEG score recompute
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  29. 2026-06-15 17:49 UTCEPSS rescore
  30. 2026-06-15 16:24 UTCEG score recompute
  31. 2026-06-15 05:41 UTCEG score recompute
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  39. 2026-06-13 23:00 UTCEPSS rescore
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  45. 2026-06-12 23:12 UTCEPSS rescore
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  47. 2026-06-12 21:27 UTCEG score recompute
  48. 2026-06-12 17:39 UTCEG score recompute
  49. 2026-06-12 13:41 UTCEG score recompute
  50. 2026-06-12 09:53 UTCEG score recompute
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  56. 2026-06-11 14:00 UTCEPSS rescore
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  61. 2026-06-10 22:18 UTCEPSS rescore
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  66. 2026-06-10 12:49 UTCEG score recompute
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  70. 2026-06-09 21:49 UTCEG score recompute
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  73. 2026-06-09 10:34 UTCEG score recompute
  74. 2026-06-09 06:49 UTCEG score recompute
  75. 2026-06-09 03:04 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-45570?
CVE-2026-45570 is a critical vulnerability published on May 19, 2026. 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…
When was CVE-2026-45570 disclosed?
CVE-2026-45570 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45570 actively exploited?
CVE-2026-45570 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45570?
CVE-2026-45570 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2026-45570?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45570, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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