CVE-2026-69114 json
Spacebar Server Cross-Channel Message Deletion via Permission Check Bypass
published 2026-08-10 2 mo ago modified 2026-09-17 52 d ago also EUVD-2026-55792
- 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 33%
- public exploits
- 0
- none known
Summary
Spacebar Server before commit 8d126f4 contains a cross-channel message deletion vulnerability in the single-delete and bulk-delete message handlers that fail to scope message queries to the requested channel. Authenticated users with MANAGE_MESSAGES permission in any controlled channel can delete arbitrary messages in other channels by routing delete requests through their own channel.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/spacebarchat/server/security/advisories/GHSA-62g6-28hv-h6hc referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/spacebarchat/server/issues/1685 referenced PoC, tagged "exploit" by a source, unverified
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:H/VA:N/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:H/A:N |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/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 |
Affected products
- Spacebar Server Spacebar Server
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
github.com
/spacebarchat/server/commit/8d126f401914d68fa8a97f7e5986dcfcc42de9a8
patch
-
github.com
/spacebarchat/server/security/advisories/GHSA-62g6-28hv-h6hc
vendor-advisory, exploit
-
github.com
/spacebarchat/server/issues/1685
technical-description, exploit, issue-tracking
-
vulncheck.com
/advisories/spacebar-server-cross-channel-message-deletion-via-permission-check-bypass
third-party-advisory
Sources
- CVE List CVE-2026-69114
- NVD CVE-2026-69114
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.