CVE-2022-39209

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-39209
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-39209.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-39209
Aliases
  • GHSA-cgh3-p57x-9q7q
Downstream
Published
2022-09-15T00:00:00Z
Modified
2025-11-14T13:35:34.282299Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Uncontrolled Resource Consumption in cmark-gfm
Details

cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior to 0.29.0.gfm.6 a polynomial time complexity issue in cmark-gfm's autolink extension may lead to unbounded resource exhaustion and subsequent denial of service. Users may verify the patch by running python3 -c 'print("![l"* 100000 + "\n")' | ./cmark-gfm -e autolink, which will resource exhaust on unpatched cmark-gfm but render correctly on patched cmark-gfm. This vulnerability has been patched in 0.29.0.gfm.6. Users are advised to upgrade. Users unable to upgrade should disable the use of the autolink extension.

Database specific 
{
    "cwe_ids": [
        "CWE-400"
    ]
}
References

Affected packages

Git / github.com/github/cmark-gfm

Affected ranges

Type
GIT
Repo
https://github.com/github/cmark-gfm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9d57d8a23142b316282bdfc954cb0ecda40a8655

Affected versions

0.*

0.27.1.gfm.2
0.27.1.gfm.3
0.27.1.gfm.4
0.28.0.gfm.10
0.28.0.gfm.11
0.28.0.gfm.5
0.28.0.gfm.6
0.28.0.gfm.7
0.28.0.gfm.8
0.28.0.gfm.9
0.28.3.gfm.12
0.28.3.gfm.13
0.28.3.gfm.14
0.28.3.gfm.15
0.28.3.gfm.16
0.28.3.gfm.17
0.28.3.gfm.18
0.28.3.gfm.19
0.28.3.gfm.20
0.29.0.gfm.0
0.29.0.gfm.1
0.29.0.gfm.2
0.29.0.gfm.3
0.29.0.gfm.4
0.29.0.gfm.5