Soft Serve 0.7.1 through 0.11.6 Information Disclosure via LFS Locks
Priority LOW 24CWE-639Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
Soft Serve versions 0.7.1 through 0.11.6 fail to scope Git LFS lock queries by repository, allowing authenticated users to read lock metadata from repositories they cannot access. Attackers with write access to any repository can enumerate lock IDs globally to recover locked file paths, usernames, and lock timestamps from private repositories.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00342 27th percentileScored 2026-11-07
Fix Fixed soft-serve (charmbracelet): 0.12.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| charmbracelet | soft-serve | 0.7.1 to before 0.12.0 | 0.12.0 | Patch available | CNA |
- soft-serve Vendorcharmbracelet Affected 0.7.1 to before 0.12.0 Fixed in 0.12.0 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:charm:soft_serve:*:*:*:*:*:*:*:* | — | — | charmbracelet |
- cpe:2.3:a:charm:soft_serve:*:*:*:*:*:*:*:* Versions — — ·charmbracelet
Remediation
- Fix · CNA soft-serve (charmbracelet) Fixed in 0.12.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-91773
- 2026-10-03 Alias added: GHSA-c9m9-282w-83cp
References
More charmbracelet vulnerabilities
- TI-2026-30142 Wish has SCP Path Traversal that allows arbitrary file read/write CVSS 3.1CRITICAL 9.6
- TI-2026-23661 Soft Serve: SSRF via unvalidated LFS endpoint in repo import CVSS 3.1CRITICAL 9.1
- TI-2025-39912 Soft Serve is vulnerable to SSRF through its Webhooks CVSS 3.1CRITICAL 9.1
- TI-2023-23497 Soft Serve Public Key Authentication Bypass Vulnerability when Keyboard-Interactive SSH Authentication is Enabled CVSS 3.1HIGH 7.5
- TI-2026-25759 Soft Serve: Authenticated repo import can clone server-local private repositories CVSS 4.0HIGH 7.1
- TI-2025-36144 Soft Serve is vulnerable to arbitrary file writing through its SSH API CVSS 3.1HIGH 7.7
Sources
- CVE-2026-91773 · CVE Program
- CVE-2026-91773 · NVD
- FIRST EPSS
- GHSA-c9m9-282w-83cp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences