CVE-2026-58423

HIGH

Published Jul 3, 2026 Modified Jul 6, 2026 CWE-287

Description

LFS authentication bypass via malformed SSH sub-verb allows unauthorized read access to private repositories

CVSS v3.1 Score

7.7

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0031

Probability of exploitation

0.23%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-287 Improper Authentication

References

Other References

https://blog.gitea.com/release-of-1.26.3-and-1.26.4/ https://github.com/go-gitea/gitea/pull/38008 https://github.com/go-gitea/gitea/releases/tag/v1.26.4 https://github.com/go-gitea/gitea/security/advisories/GHSA-7wvc-rvp7-w99x https://github.com/go-gitea/gitea/security/advisories/GHSA-7wvc-rvp7-w99x

Frequently Asked Questions

What is CVE-2026-58423? +

LFS authentication bypass via malformed SSH sub-verb allows unauthorized read access to private repositories It has a CVSS v3.1 base score of 7.7 (HIGH).

How severe is CVE-2026-58423? +

CVE-2026-58423 has a CVSS v3.1 score of 7.7 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0031, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-58423? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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Quick Facts

CVSS Score: 7.7
Severity: HIGH
EPSS: 0.0031
Published: Jul 3, 2026

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