GHSA-r524-c2gf-5chr — trac
CRITICALGHSA-r524-c2gf-5chr is a critical-severity (CVSS 9.4) vulnerability in trac. A fix is available for trac — see the affected versions and patch details below.
Trac reStructuredText breach of privacy and denial of service vulnerability
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
GHSA-r524-c2gf-5chr plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
tracReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Trac before 0.9.6 does not disable the "raw" or "include" commands when providing untrusted users with restructured text (reStructuredText) functionality from docutils, which allows remote attackers to read arbitrary files, perform cross-site scripting (XSS) attacks, or cause a denial of service via unspecified vectors. NOTE: this might be related to CVE-2006-3458.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | trac | all versions | 0.9.6pip install --upgrade 'trac==0.9.6' |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for trac, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update trac to 0.9.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r524-c2gf-5chr is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-r524-c2gf-5chr can be triaged on real exposure rather than presence alone.
Tailored to GHSA-r524-c2gf-5chr. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-r524-c2gf-5chr in your dependencies?
O3 Security finds GHSA-r524-c2gf-5chr across PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.