https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-02T14:28:24.670644+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-292776 EUVD-2026-292776 2026-10-02T14:28:24.738569+00:00 EUVD-2026-292776 https://cve.radiocsirt.org/vuln/fkie_cve-2026-40471 fkie_cve-2026-40471 2026-10-02T14:28:24.738608+00:00

hackage-server lacked Cross-Site Request Forgery (CSRF) protection across its endpoints. Scripts on foreign sites could trigger requests to hackage server, possibly abusing latent credentials to upload packages or perform other administrative actions. Some unauthenticated actions could also be abused (e.g. creating new user accounts).

 https://cve.radiocsirt.org/vuln/ghsa-mf84-vmqg-86fm GHSA-mf84-vmqg-86fm 2026-10-02T14:28:24.738644+00:00

hackage-server lacked Cross-Site Request Forgery (CSRF) protection across its endpoints. Scripts on foreign sites could trigger requests to hackage server, possibly abusing latent credentials to upload packages or perform other administrative actions. Some unauthenticated actions could also be abused (e.g. creating new user accounts).

 https://cve.radiocsirt.org/vuln/hsec-2026-0002 HSEC-2026-0002 — Hackage CSRF vulnerability 2026-10-02T14:28:24.738661+00:00

Affected: Hackage: hackage-server

# Hackage CSRF vulnerability

* Vulnerable File: `src/Distribution/Server/Features/Votes.hs` (example) * Impact: can forge requests through XSS

hackage-server lacked Cross-Site Request Forgery (CSRF) protection across its endpoints. Scripts on foreign sites could trigger requests to hackage server, possibly abusing latent credentials to upload packages or perform other administrative actions. Some unauthenticated actions could also be abused (e.g. creating new user accounts).

To fix the issue, a new CSRF middleware checks all requests. Requests using HTTP methods other than `GET`, `HEAD` and `OPTIONS` are subject to a check of the [`Sec-Fetch-Site` header][sec-fetch-site], which is [widely supported by modern browsers][caniuse-sec-fetch-site]. Cross-site requests are `403 Forbidden`. Certain approved and expected non-browser user agents (e.g. `cabal-install/*`) are exempted from the check, as are requests using token authentication (`Authorization: X-ApiKey ...`).

The fix has been [committed][commit] and deployed on `hackage.haskell.org`.

## Acknowledgements

- **Joshua Rogers** (https://joshua.hu/) of AISLE (https://aisle.com/) reported the issue to the Haskell Security Response Team. - **Spenser Janssen** implemented the fix, and **Fraser Tweedale** reviewed it. - **Gershom Bazerman** merged the fix and deployed it to `hackage.haskell.org`.

[sec-fetch-site]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Sec-Fetch-Site [caniuse-sec-fet…