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Fencer Intel
high 7.5

CVE-2026-68540 json

fulgur: Quadratic style-list reprocessing during containing-block resolution for absolutely-positioned pseudo-elements causes denial of servicefulgur:

published 4mo ago modified 11h ago also GHSA-v8x5-rchq-jr47 , EUVD-2026-124057

Unreviewed: the maintainers' own advisory

Published by the maintainers on their GitHub repository fulgur-rs/fulgur. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
—
no EPSS score yet
public exploits
0
none known

Summary

fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.6.0 to before version 0.33.0, quadratic style-list reprocessing during containing-block resolution for absolutely-positioned pseudo-elements cause denial of service. This issue has been patched in version 0.33.0.

Patch / fix

Is CVE-2026-68540 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • fulgur-rs fulgur

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-405 Asymmetric Resource Consumption (Amplification)

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of fulgur-rs/fulgur published their own advisory on GitHub. Reviewed sources take precedence over it.