OpenClaw has Remote Code Execution via System Prompt Injection in Slack Channel Descriptions

published 2026-02-17 8 mo ago modified 2026-06-17 4 mo ago also GHSA-782p-5fr5-7fj8 , EUVD-2026-8120

cvss: 3.7; 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 15%
public exploits: 0; none known

OpenClaw (formerly Clawdbot) is a personal AI assistant users run on their own devices. In versions 2026.2.2 and below, when the Slack integration is enabled, channel metadata (topic/description) can be incorporated into the model's system prompt. Prompt injection is a documented risk for LLM-driven systems. This issue increases the injection surface by allowing untrusted Slack channel metadata to be treated as higher-trust system input. This issue has been fixed in version 2026.2.3.

Patch / fix

fixed in 2 links 3

npm openclaw 2026.2.3
openclaw openclaw 2026.2.3

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 8 mo ago (2026-02-19)

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/openclaw/openclaw/security/advisories/GHSA-782p-5fr5-7fj8 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
GitHub	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
npm	openclaw	<2026.2.3	2026.2.3

Affected products

clawdbot clawdbot

Classification

Weakness

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
CWE-94 Improper Control of Generation of Code

References

github.com /openclaw/openclaw/commit/35eb40a7000b59085e9c638a80fd03917c7a095e
web, patch
github.com /openclaw/openclaw/security/advisories/GHSA-782p-5fr5-7fj8
web, exploit, patch, vendor-advisory
github.com /openclaw/openclaw/releases/tag/v2026.2.3
web, product, release-notes
nvd.nist.gov /vuln/detail/CVE-2026-24764
advisory
github.com /openclaw/openclaw
package

Sources

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.

Summary