CVE-2025-71436
Raptor RDF Syntax Library 2.0.15 through 2.0.16 Heap Buffer Overflow via Language Tag
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 20, 2026
- Updated
- Oct 20, 2026
- Reserved
- Oct 20, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H | VulnCheck |
Weaknesses
- CWE-122 Heap-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
Raptor RDF Syntax Librarylibrdf |
|
References
- https://github.com/dajobe/raptor/issues/83issue-tracking
- https://github.com/dajobe/raptor/commit/361a803a72817ae771db2438277229e6541e1575patch
- https://github.com/dajobe/raptor/blob/raptor2_2_0_16/src/raptor_term.c#L200-L218technical-description
- https://github.com/dajobe/raptor/blob/raptor2_2_0_16/src/raptor_term.c#L270-L287technical-description
- VulnCheck Advisory: Raptor RDF Syntax Library 2.0.15 through 2.0.16 Heap Buffer Overflow via Language Tagthird-party-advisory
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