CVE-2024-57823: librdf Raptor RDF Syntax Library · Integer Underflow
Affects librdf Raptor RDF Syntax LibrarySource CVE Database V5
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
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Jan 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
GitHubdajobe/raptorpkg:github/dajobe/raptorOther threats | Affected
| Fixed in
|
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().