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VulnerabilityPublished Updated

CVE-2024-57823: librdf Raptor RDF Syntax Library · Integer Underflow

Affects librdf Raptor RDF Syntax LibrarySource CVE Database V5

0

Not known to be exploited · CVSS 9.3 Critical : upgrade to 2.0.17 as a priority.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.0.17
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Jan 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade dajobe/raptor to 2.0.17.

Affected software

ProductAffectedFixed in
GitHubdajobe/raptorpkg:github/dajobe/raptorOther threatsAffected
  • <2.0.17
Fixed in
  • 2.0.17

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Immediate mitigation should focus on restricting access to systems processing untrusted RDF data with the vulnerable librdf versions. Organizations should implement strict input validation and sanitization for RDF inputs to prevent malicious URI normalization attempts. Monitoring and logging of RDF parsing errors or crashes can help detect exploitation attempts. If you cannot patch yet, consider isolating or sandboxing applications using the Raptor library to limit potential damage from exploitation. Engage with software vendors or open-source maintainers to obtain or contribute to patches addressing the integer underflow. Additionally, conduct thorough code reviews and security testing of custom applications integrating librdf to identify and remediate unsafe URI handling. Network-level protections, such as firewalls and intrusion detection systems, should be tuned to detect anomalous traffic patterns related to RDF data ingestion. Finally, maintain an incident response plan tailored to address potential exploitation scenarios involving semantic web technologies.

Description

In Raptor RDF Syntax Library through 2.0.16, there is an integer underflow when normalizing a URI with the turtle parser in raptor_uri_normalize_path().

References

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