CVE-2025-64494: Soft Serve does not sanitize ANSI escape sequences in user input
Vulnerability summary
CVE-2025-64494 is a medium (CVSS 4.6) vulnerability in charmbracelet soft-serve. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.8% of scored vulnerabilities.
Not severe (CVSS 4.6, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 08-11-2025PublishedVulnerability first disclosed.
- 10-11-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- NVDNIST4.6MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.18% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.
Charmbracelet1 product
- soft-serve≤ 0.10.0
Github.com/charmbracelet1 product
- soft-serve< 0.11.0
2 vendors · 2 products
References
4 links- github.com/charmbracelet/soft-serve/security/advisories/GHSA-fv2r-r8mp-pg48X Refsource CONFIRMWEBAdvisory
- github.com/charmbracelet/soft-serve/commit/d9639320b8d0ccd76fe6836a042c042b0ebde549X Refsource MISCWEBFIX