Auth bypass in Taiga Taiga-Back
CVE-2026-59097
Taiga before 6.10.2 contains a missing authorization vulnerability that allows unauthenticated remote attackers to create default due-date records in any project by exploiting unprotected POST endpoints on the user-story, task, and issue due-date API viewsets. Attackers can supply an arbitrary project identifier to these endpoints, which bypass permission checks and apply the AllowAny default, to pre-empt project administrators from initializing due dates by creating records before they can do so themselves.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (43.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Taiga Taiga-Back — versions 0
Weakness classification (CWE)
References
- github.com/taigaio/taiga-back/commit/f925af424623350e04d4abc45bf1dc70e70c48a9 (patch)
- github.com/taigaio/taiga-back/issues/244 (technical-description, exploit)
- github.com/taigaio/taiga-back/pull/245 (issue-tracking)
- github.com/taigaio/taiga-back/releases/tag/6.10.2 (release-notes)
- www.vulncheck.com/advisories/taiga-unauthorized-due-date-creation-via-api-views… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-59097?
- CVE-2026-59097 is a medium-severity vulnerability in Taiga Taiga-Back, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-07-02.
- How severe is CVE-2026-59097?
- Medium severity. CVSS v3 base score is 5.3 out of 10.