Raptor RDF Syntax Library up to 2.0.16 raptor_new_term_from_counted_literal heap-based overflow

Summaryinfo

A vulnerability was found in Raptor RDF Syntax Library up to 2.0.16. It has been declared as problematic. Affected by this vulnerability is the function raptor_new_term_from_counted_literal. The manipulation results in heap-based overflow. This vulnerability is reported as CVE-2025-71436. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Raptor RDF Syntax Library up to 2.0.16. It has been classified as problematic. Affected is the function raptor_new_term_from_counted_literal. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on integrity, and availability. CVE summarizes:

Raptor RDF Syntax Library from 2.0.15 through 2.0.16 contains a heap-based buffer overflow vulnerability in raptor_new_term_from_counted_literal() caused by truncating language tag length to an unsigned char. Attackers can supply Turtle, TriG, N-Triples or N-Quads documents with language tags of 256 bytes or longer to corrupt heap memory, crash applications, and possibly execute code.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-71436 since 10/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/20/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Software Library

Name

• Raptor RDF Syntax Library

Version

• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7
• 2.0.8
• 2.0.9
• 2.0.10
• 2.0.11
• 2.0.12
• 2.0.13
• 2.0.14
• 2.0.15
• 2.0.16

CPE 2.3info

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CPE 2.2info

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Entryinfo

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