HOMEVULNERABILITIESCVE-2026-27576
MEDIUM

CVE-2026-27576

CWE-400Published: February 21, 2026· Updated: Feb 23, 2026

4.0
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:0.2th

Official Description

OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, the ACP bridge accepts very large prompt text blocks and can assemble oversized prompt payloads before forwarding them to chat.send. Because ACP runs over local stdio, this mainly affects local ACP clients (for example IDE integrations) that send unusually large inputs. This issue has been fixed in version 2026.2.19.

NVD Source

Technical Analysis

CVE-2026-27576 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Vendors & Products

openclaw1 product
openclaw
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/openclaw/openclaw/commit/63e39d7f57ac4ad4a5e38d17e7394ae7c4dd0b9c
PATCHhttps://github.com/openclaw/openclaw/commit/8ae2d5110f6ceadef73822aa3db194fb60d2ba68
PATCHhttps://github.com/openclaw/openclaw/commit/ebcf19746f5c500a41817e03abecadea8655654a
ADVISORYhttps://github.com/openclaw/openclaw/security/advisories/GHSA-cxpw-2g23-2vgw

All References (5)

→
https://github.com/openclaw/openclaw/commit/63e39d7f57ac4ad4a5e38d17e7394ae7c4dd0b9cPatch
→
https://github.com/openclaw/openclaw/commit/8ae2d5110f6ceadef73822aa3db194fb60d2ba68Patch
→
https://github.com/openclaw/openclaw/commit/ebcf19746f5c500a41817e03abecadea8655654aPatch
→
https://github.com/openclaw/openclaw/releases/tag/v2026.2.19Release Notes
→
https://github.com/openclaw/openclaw/security/advisories/GHSA-cxpw-2g23-2vgwVendor Advisory

Quick Facts

CVE IDCVE-2026-27576
CVSS Score4.0 / 10
SeverityMEDIUM
WeaknessCWE-400
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedFeb 21, 2026

Related CVEs (CWE-400)

CVE-2026-30141
9.8
CVE-2026-8856
9.1
CVE-2026-7790
8.7
CVE-2025-32424
8.7
CVE-2026-45169
8.7
CVE-2026-33155
8.7

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-27576 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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