Headline
GHSA-xxmq-4vph-956w: Comrak vulnerable to production of excessive output when parsing Markdown (GHSL-2023-048)
Impact
comrak is vulnerable to the upstream cmark issue, “Issue revealed by fuzzer”. A large number of references in a markdown document can trigger an overly large response.
Patches
0.17.0 contains https://github.com/kivikakk/comrak/commit/70f97f3ea4eae30ffbd1b94c764a3de2f1c41d2a, which limits reference output to a 100Kb maximum.
Workarounds
n/a
References
- https://github.com/commonmark/cmark/issues/354
Comrak vulnerable to production of excessive output when parsing Markdown (GHSL-2023-048)
Moderate severity GitHub Reviewed Published Mar 28, 2023 in kivikakk/comrak • Updated Mar 28, 2023