CVE-2026-86255 json
wger before 2.5 Uncontrolled Resource Consumption via date_sequence
published 2026-05-13 5 mo ago modified 2026-09-18 51 d ago also GHSA-v25j-wqcw-fvhj , EUVD-2026-72111
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 38%
- public exploits
- 0
- none known
Summary
wger before 2.5 fails to validate the maximum duration of routine date ranges, allowing authenticated users to create routines spanning arbitrarily long periods. Attackers can trigger the date_sequence computation via routine detail endpoints, forcing the server to iterate thousands of times per request and exhaust worker threads, denying service to legitimate users.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 51 d ago
Exploit prediction
0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | wger | <=2.5 |
no fix listed |
Affected products
- wger-project wger
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/wger-project/wger/commit/5f07a4473e2c32d298c8cdd31d78e5107840039c
web
-
github.com
/wger-project/wger/security/advisories/GHSA-v25j-wqcw-fvhj
vendor-advisory, web
-
vulncheck.com
/advisories/wger-before-2.5-uncontrolled-resource-consumption-via-date-sequence
third-party-advisory
-
github.com
/wger-project/wger
package
Sources
- CVE List CVE-2026-86255
- GitHub Advisory GHSA-v25j-wqcw-fvhj
- NVD CVE-2026-86255
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