CVE-2025-71436

Raptor RDF Syntax Library 2.0.15 through 2.0.16 Heap Buffer Overflow via Language Tag

HIGH
7.1
CVSS Score
Published: October 20, 2026 at 03:40 PM UTC
Updated: October 28, 2026 at 02:10 PM UTC
1 product affected across 1 vendorRaptor Rdf Syntax Library

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Severity
HIGH7.1
Exploit prediction
EPSS 0.5%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHVulnCheck
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-122

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