wger: API credentials remain valid after logout/password change

published 2026-10-07 32 d ago modified 2026-10-15 24 d ago also GHSA-v3x9-6gg8-c2c9 , PYSEC-2026-4315 , EUVD-2026-94334

cvss: 4.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits: 0; none known

wger is a free, open-source workout and fitness manager. Versions prior to 2.6 have a vulnerability in the authentication/session lifecycle of `wger` where bearer-style API credentials remain valid after a user logs out and after a user changes their password. An attacker who steals a victim’s DRF authtoken (`Authorization: Token ...`) or JWT refresh token can continue to access protected `/api/v2/*` endpoints until the token is manually rotated/deleted (DRF token) or naturally expires (JWT refresh). Version 2.6 contains a patch.

Patch / fix

links 1

github.com/wger-project/wger/releases/tag/2.6 release

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 30 d ago (2026-10-10)

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/wger-project/wger/security/advisories/GHSA-v3x9-6gg8-c2c9 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.8	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
GitHub	3.1	4.8	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
OSV	3.1	4.8	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
pypi	wger	<=2.1	no fix listed

Affected products

wger-project wger

Classification

Weakness

CWE-287 Improper Authentication
CWE-613 DEPRECATED: Insufficient Session Expiration

References

github.com /wger-project/wger/security/advisories/GHSA-v3x9-6gg8-c2c9
exploit, web
github.com /wger-project/wger/releases/tag/2.6
web
github.com /wger-project/wger
package
pypi.org /project/wger
package
github.com /advisories/GHSA-v3x9-6gg8-c2c9
advisory
nvd.nist.gov /vuln/detail/CVE-2026-46437
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary