CVE-2026-73976 djehuty: Unauthenticated SPARQL injection in the search API (`order`, `operator`, `key`)
Unauthenticated attackers can inject SPARQL queries to exfiltrate private data or cause denial of service in the djehuty research data repository.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73976?
CVE-2026-73976 is a high-severity vulnerability in 4TUResearchData djehuty, published on 1 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
djehuty is a research data repository system developed by 4TU.ResearchData. Prior to version 26.3.2, An unauthenticated attacker can inject SPARQL into the search/listing queries through three separate parameters. Because the affected queries are read (SELECT) queries, this does not write to the store, but it allows: Cross-graph data exfiltration — e.g. UNION-ing in triples from graphs the request was never scoped to (drafts/private/internal data held in the RDF store); denial of service — expensive or malformed queries that tie up the SPARQL backend / web workers. No account or user interaction is required. This issue has been patched in version 26.3.2.
Weakness: CWE-943
Which versions are affected by CVE-2026-73976?
How do I fix CVE-2026-73976?
No fix has been published for CVE-2026-73976 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-73976 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73976 exists.
Sources
Also known as GHSA-7gp2-rxw9-vw6p.