fulgur-rs fulgur up to 0.32.x Style-List denial of service

Summaryinfo

A vulnerability, which was classified as problematic, has been found in fulgur-rs fulgur up to 0.32.x. Affected by this issue is some unknown functionality of the component Style-List. This manipulation causes denial of service. The identification of this vulnerability is CVE-2026-68540. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in fulgur-rs fulgur up to 0.32.x. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component Style-List. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-68540 since 07/30/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 0.33.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• fulgur-rs

Name

• fulgur

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31
• 0.32

Website

• Product: https://github.com/fulgur-rs/fulgur/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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