CVE-2026-41519Network attack vector

Persistent API access via unrevoked password-change tokens

Published May 7, 2026 · Updated May 7, 2026

Insufficient token expiration in Weblate before 5.17.1 allows remote authenticated users to retain API access after a password change. Password-change handling calls cycle_session_keys() for browser sessions but leaves the user's wlu_* DRF token row in authtoken_token untouched. Exploitation requires a previously obtained personal API token, which remains usable with the associated account's permissions after the password changes.

CVSS severity4.2
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient token expiration in Weblate before 5.17.1 allows remote authenticated users to retain API access after a password change. Password-change handling calls cycle_session_keys() for browser sessions but leaves the user's wlu_* DRF token row in authtoken_token untouched. Exploitation requires a previously obtained personal API token, which remains usable with the associated account's permissions after the password changes.

The record

CVE
CVE-2026-41519
Published
May 7, 2026
Updated
May 7, 2026
Vendor
Weblate
Product
Weblate
Classifications
CWE-613, T1550.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.17.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Weblate · Weblateversion=< 5.17.1

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
4.2GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1550.001Use Alternate Authentication Material: Application Access Token

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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