CVE-2026-54723 devpi: Database contents leak
Unauthenticated attackers can access the changelog route on primary devpi servers, leaking database contents including password hashes and causing resource exhaustion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-54723?
CVE-2026-54723 is a medium-severity missing authorization vulnerability in devpi, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
devpi is a Python package index staging server and packaging, testing, and release tool. Prior to 6.20.2 and 7.0.0b3, a server configured with the primary or deprecated master role allows an unauthenticated, modified GET request to the +changelog route because verify_primary does not reject a missing identity and therefore fails to require ReplicaIdentity. The response can disclose complete database content, including Argon2 password hashes and identifiers and salts for devpi-tokens; exposed hashes may be subject to dictionary attacks, and public tokens may assist attempts to derive the server secret. Large responses can also consume significant CPU, input/output capacity, and bandwidth. Servers using the standalone role are not exposed through replication, and an instance served exclusively through nginx with devpi-lockdown redirects the request to login with no known exploit. This issue is fixed in devpi-server versions 6.20.2 and 7.0.0b3.
Weakness: CWE-304
Which versions are affected by CVE-2026-54723?
3 open source packages ship an affected version, including devpi-server.
| Package | Affected | Fixed in |
|---|---|---|
devpi-server PyPI | All versions | 6.20.2 |
devpi-server PyPI | All versions | 6.20.2 |
devpi-server PyPI | All versions | 6.20.2 |
How do I fix CVE-2026-54723?
Upgrade devpi-server to 6.20.2 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-54723 being exploited?
There is no known exploitation of CVE-2026-54723 in the wild and no public exploit code.
Sources
Also known as GHSA-m5pq-69xg-vcq3, PYSEC-2026-3661.