Information Disclosure Vulnerability in Soft Serve by Charmbracelet
CVE-2026-91773

5.3MEDIUM

Key Information:

Vendor

Charmbracelet

Status
Soft-serve
Vendor
CVE Published:
15 September 2026

What is CVE-2026-91773?

Versions 0.7.1 through 0.11.6 of Soft Serve by Charmbracelet contain a vulnerability that allows authenticated users to access Git LFS lock metadata from repositories they should not be able to see. This lack of proper scoping allows users with write permissions to enumerate globally accessible lock IDs which could lead to the exposure of sensitive information, including locked file paths, associated usernames, and timestamps from private repositories.

Affected Version(s)

soft-serve 0.7.1 < 0.12.0

References

https://github.com/charmbracelet/soft-serve/security/advi...
vendor-advisory
https://github.com/charmbracelet/soft-serve/commit/e34914...
patch
https://github.com/charmbracelet/soft-serve/blob/v0.11.6/...
technical-description

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

sondt99
George Chen
.