CVE-2026-53823 json
OpenClaw < 2026.5.3 - Privilege Escalation via Mutable Slack Display Names in allowFrom
published 2026-06-12 4 mo ago modified 2026-07-23 3 mo ago also GHSA-c29c-2q9c-pc86 , EUVD-2026-36611
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 11%
- public exploits
- 0
- none known
Summary
OpenClaw before 2026.5.3 contains a privilege escalation vulnerability in the allowFrom feature that binds to mutable Slack display names. Attackers with Slack account access can change display name metadata to match policy entries, potentially gaining unauthorized agent access intended for other identities.
Patch / fix
- npm openclaw 2026.5.3
- OpenClaw OpenClaw 2026.5.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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 packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.5.3 |
2026.5.3 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-290 Authentication Bypass by Spoofing
References
-
github.com
/openclaw/openclaw/security/advisories/GHSA-c29c-2q9c-pc86
vendor-advisory, web, mitigation
-
vulncheck.com
/advisories/openclaw-privilege-escalation-via-mutable-slack-display-names-in-allowfrom
third-party-advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-53823
- GitHub Advisory GHSA-c29c-2q9c-pc86
- NVD CVE-2026-53823
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.