Soft Serve does not sanitize ANSI escape sequences in user input
Priority LOW 20CWE-150Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
Soft Serve is a self-hostable Git server for the command line. In versions prior to 0.10.0, there are several places where the user can insert data (e.g. names) and ANSI escape sequences are not being removed, which can then be used, for example, to show fake alerts. In the same token, git messages, when printed, are also not being sanitized. This issue is fixed in version 0.10.0.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00191 8th percentileScored 2026-11-07
Fix Fixed github.com/charmbracelet/soft-serve (Go): 0.11.0
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 | up to 0.10.0 | — | No fix listed | CNA |
| — | github.com/charmbracelet/soft-serve (Go) | before 0.11.0 | 0.11.0 | Patch available | GHSA-fv2r-r8mp-pg48 |
- soft-serve Vendorcharmbracelet Affected up to 0.10.0 Fixed in — No fix listed CNA
- github.com/charmbracelet/soft-serve (Go) Vendor— Affected before 0.11.0 Fixed in 0.11.0 Patch available GHSA-fv2r-r8mp-pg48
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 · GHSA-fv2r-r8mp-pg48 github.com/charmbracelet/soft-serve (Go) Fixed in 0.11.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-64494
- 2026-10-03 Alias added: GHSA-fv2r-r8mp-pg48
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-2025-64494 · CVE Program
- CVE-2025-64494 · NVD
- FIRST EPSS
- GHSA-fv2r-r8mp-pg48 · 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