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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
ghsa
#git

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

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