Vulnerability · Published Oct 1, 2026 · Assigned by GitHub_M

CVE-2026-73975djehuty: Authenticated SPARQL injection in session editing allows writing arbitrary RDF triples

High 8.4

In plain English

A high-severity security flaw in djehuty from 4TUResearchData. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 4.0)8.4High

Exploit odds (30 days)0.4%top 67.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

djehuty is a research data repository system developed by 4TU.ResearchData. Prior to version 26.3.2, an authenticated depositor can inject arbitrary SPARQL into a state-modifying (DELETE/INSERT) query by supplying a crafted session name, letting them write (and delete) arbitrary triples anywhere in the RDF store. Because the RDF store is shared across all accounts and datasets, this is an integrity compromise of the whole repository's metadata, not just the attacker's own records. Having a logged-in account is a precondition. djehuty allows self-registration via ORCID/SAML, so this is a low barrier in typical deployments. This issue has been patched in version 26.3.2.

Affected products (as reported)

Vendor	Product	Versions
4TUResearchData	djehuty	< 26.3.2

Weakness: CWE-943 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:N

References

https://github.com/4TUResearchData/djehuty/security/advisories/GHSA-9864-23x8-762h x_refsource_CONFIRM
https://github.com/4TUResearchData/djehuty/releases/tag/v26.3.2 x_refsource_MISC