Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
diffsk/configobj
release @ b7707c9
2
Fixes
1
CVEs
MEDIUM
Peak severity
0.0%
Coverage
Highlights
Denial of Service: 1 prior fix. Scrutinize any change in this area.
configobj.py: most-fixed (1 issue). Treat as high-risk during review.
0 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
ReDoS: The validator's function-parsing logic utilized an overly permissive regular expression containing backtracking patterns, allowing attackers to trigger CPU exhaustion via malicious configuration values. Developers must ensure that all regular expressions used in validation are strictly bounded and avoid nested quantifiers.
Denial of Service: Parsing invalid configuration lines containing unescaped percentage signs triggered formatting TypeErrors inside the internal error handling routine, leading to abrupt parser crashes. Error handling routines must defensively format error messages without directly interpolating raw input strings into format specs.