CVE-2026-40104XWiki's REST APIs can list all pages/spaces, leading to unavailability
- 6.9MediumCVSS base score
- 0.41%Exploitation in 30 daysEPSS · top 65% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 1.8-rc-1, 17.0.0-rc-1 and 17.5.0-rc-1 and prior include a resource exhaustion vulnerability in REST API endpoints such as /xwiki/rest/wikis/xwiki/spaces/AnnotationCode/pages/AnnotationConfig/objects/AnnotationCode.AnnotationConfig/0/properties, which list all available pages as part of the metadata for database list properties without applying query limits. On large wikis, this can exhaust available server resources. This issue has been patched in versions 16.10.16, 17.4.8 and 17.10.1.
Timeline
ID reserved
By GitHub_M
- 6 days later
· 6 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 4.0 | Medium6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| CISA-ADPADP (enrichment) | 3.1 | High8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
| NVDNVD · Analyzed | 4.0 | Medium6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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 |
- EPSS (exploitation in 30 days)
- 0.41% · top 65% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.9.
Affected products
xwiki · org.xwiki.platform:xwiki-platform-oldcore
- affected >= 1.8-rc-1, < 16.10.16
- affected >= 17.0.0-rc-1, < 17.4.8
- affected >= 17.5.0-rc-1, < 17.10.1
xwiki · org.xwiki.platform:xwiki-platform-legacy-oldcore
- affected >= 1.8-rc-1, < 16.10.16
- affected >= 17.0.0-rc-1, < 17.4.8
- affected >= 17.5.0-rc-1, < 17.10.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.xwiki.platform:xwiki-platform-legacy-oldcoreGHSA-mrqg-xmgm-rc5g (opens in a new tab)
- Mavenorg.xwiki.platform:xwiki-platform-oldcoreGHSA-mrqg-xmgm-rc5g (opens in a new tab)
References
References3
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-mrqg-xmgm-rc5g (opens in a new tab)x_refsource_CONFIRM
- https://github.com/xwiki/xwiki-platform/commit/47b568c4753a6e682b14be1ca581bdd3b25d45a7 (opens in a new tab)x_refsource_MISC
- https://jira.xwiki.org/browse/XWIKI-23550 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-22817 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-mrqg-xmgm-rc5g (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-40104)Record last updated .