CVE-2023-24824

highpriority · track · 30EPSS 0.010 · 64 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
1.04% (64th) EPSS
CVSS 7.5 · high
Is it mine?
9 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. This CVE covers quadratic complexity issues when parsing text which leads with either large numbers of `>` or `-` characters. This issue has been addressed in version 0.29.0.gfm.10. Users are advised to upgrade. Users unable to upgrade should validate that their input comes from trusted sources.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedpandoc-0:2.0.6-7.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2025:8427
  • Fixedpandoc-0:2.0.6-7.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2025:8427
  • Fixedpandoc-0:2.0.6-7.el8_10.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2025:8427
  • Fixedpandoc-0:2.0.6-7.el8_10.src as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2025:8427
  • Fixedpandoc-0:2.0.6-7.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2025:8427
  • Fixedpandoc-common-0:2.0.6-7.el8_10.noarch as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2025:8427
  • Workaroundpandoc-0:2.0.6-7.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.

  • Workaroundpandoc-0:2.0.6-7.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.

  • Workaroundpandoc-0:2.0.6-7.el8_10.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.

  • Workaroundpandoc-0:2.0.6-7.el8_10.src as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.

  • Workaroundpandoc-0:2.0.6-7.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.

  • Workaroundpandoc-common-0:2.0.6-7.el8_10.noarch as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.3–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU
v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · security-advisories@github.comexploitability 3.9 · impact 1.4
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Red Hat Product Security US
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1286USCWE-400USCWE-407US
05

affected products (9)

Products and version ranges known to be affected.

06

advisories (3)

Vendor and ecosystem advisories describing this.

  • RHSA-2025:8427Red Hat Security Advisory: pandoc security update2025-06-03csaf · redhat_csafUS

    An update for pandoc is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • WID-SEC-W-2025-1213Red Hat Enterprise Linux (cmark-gfm): Schwachstelle ermöglicht Denial of ServiceDeutsch2025-06-02csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • HSEC-2025-0007cmark-gfm: resource exhaustion due to quadratic complexity in parser2025-12-27vendor · osvUS

    # cmark-gfm: resource exhaustion due to quadratic complexity in parser *cmark-gfm* is GitHub's fork of *cmark*, a CommonMark parsing and rendering library and program in C. A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service, due to quadratic complexity issues when parsing text which leads with either large numbers of `>` or `-` characters. The Haskell *cmark-gfm* package bundles the C sources and was affected by this issue. This fix was released in the upstream C package at version `0.29.0.gfm.10`. Version `0.2.6` of the Haskell package adopted the fix (moving from `0.29.0.gfm.6` to `0.29.0.gfm.13`). Packages that depend on *cmark-gfm* should update to `0.2.6` or later. Users unable to update should avoid processing data from untrusted sources or validate the input with other tools before using *cmark-gfm* to parse it. Pandoc `< 2.10.1` depended on *cmark-gfm* and could be affected by this issue.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdosvnvdredhat_csafcert_bundNVDCVE.orgMITRE
published 2023-03-31modified 2026-06-17
09

references (8)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan