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Vulnerabilities

Vulnerability · CVE-2026-31899

CairoSVG is an SVG converter based on Cairo, a 2D graphics library.

Published Mar 13, 2026 · catalog updated Jun 17, 2026 · CairoSVG is an SVG

Check if you run it

No confirmed exploitation is on record for CVE-2026-31899. EPSS is 0.53%. Act only if a listed version of CairoSVG is an SVG is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (CairoSVG is an SVG).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.53%
Remediation
Advisory link
Affected products
cpe courtbouillon/cairosvg

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe courtbouillon/cairosvgversion unspecified

How to fix CVE-2026-31899

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-31899. EPSS is 0.53%. Act only if a listed version of CairoSVG is an SVG is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-674. EPSS 0.53%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 13, 2026 · NIST NVD

    Detected

    CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input.

  2. Jun 17, 2026 · NIST NVD

    Updated

    CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input.

Sources

  • CVE.orgVulnerability recordCVE-2026-31899

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-31899

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-31899

    CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.