fulgur-rs fulgur up to 0.28.x CSS String-Set allocation of resources

Summaryinfo

A vulnerability, which was classified as problematic, was found in fulgur-rs fulgur up to 0.28.x. This affects an unknown part of the component CSS String-Set Handler. Such manipulation leads to allocation of resources. This vulnerability is referenced as CVE-2026-68539. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in fulgur-rs fulgur up to 0.28.x. It has been rated as problematic. Affected by this issue is some unknown functionality of the component CSS String-Set Handler. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. Impacted is availability. CVE summarizes:

fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.4.4 to before version 0.29.0, the CSS string-set named-string values resolved from a document were accumulated per element with no memory budget, letting a small crafted document amplify into large retained memory (and the CPU to copy it) — results in a denial of service. This issue has been patched in version 0.29.0.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-68539 since 07/30/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 0.29.0 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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

Website

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

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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