CVE-2026-27545

mediumpriority · track · 19EPSS 0.001 · 1 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.10% (1st) EPSS
CVSS 4.7 · medium
Is it mine?
6 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

OpenClaw versions prior to 2026.2.26 contain an approval bypass vulnerability in system.run execution that allows attackers to execute commands from unintended filesystem locations by rebinding writable parent symlinks in the current working directory after approval. An attacker can modify mutable parent symlink path components between approval and execution time to redirect command execution to a different location while preserving the visible working directory string.

01

cvss

Technical severity, 0–10. One row per scoring source.

6.9
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.7mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 1 · impact 3.6
v3.16.1mediumAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Lsecondary · FSTEC (BDU) RU
v3.16.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Lsecondary · disclosure@vulncheck.comexploitability 1.8 · impact 4.2
v4.06.9mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.06.9mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/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:Xsecondary · disclosure@vulncheck.com
v4.04.4mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (6)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-0551OpenClaw: Mehrere SchwachstellenDeutsch2026-02-26csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in OpenClaw ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen oder andere nicht näher spezifizierte Angriffe durchzuführen.

  • GHSA-f7ww-2725-qvw2OpenClaw: Node system.run approval bypass via parent-symlink cwd rebind2026-03-02ghsa · osvUS

    ## Summary For `host=node` executions, approval context could be bypassed after approval-time by rebinding a writable parent symlink in `cwd` while preserving the visible `cwd` string. ## Affected Packages / Versions - Package: `openclaw` (npm) - Affected: `<= 2026.2.25` - Fixed: `>= 2026.2.26` (planned next npm release) ## Impact A command approved for one filesystem location could execute from a different location if a mutable parent symlink changed between approval and execution. ## Fix - Added immutable approval-time plan preparation (`system.run.prepare`) and `systemRunPlanV2` canonical fields (`argv`, `cwd`, `agentId`, `sessionKey`). - Enforced canonical plan values through approval request storage and forwarding-time sanitization. - Rejected mutable parent-symlink path components during approval-plan building to block symlink rebind bypass. - Follow-up refactors centralized command catalogs and approval context/error handling to reduce future drift. ## Fix Commit(s) - `78a7ff2d50fb3bcef351571cb5a0f21430a340c1` - `d82c042b09727a6148f3ca651b254c4a677aff26` - `d06632ba45a8482192792c55d5ff0b2e21abb0a7` - `4e690e09c746408b5e27617a20cb3fdc5190dbda` - `4b4718c8dfce2e2c48404aa5088af7c013bed60b` ## Release Process Note `patched_versions` is pre-set to the planned next release (`2026.2.26`). Once npm `openclaw@2026.2.26` is published, publish this advisory directly without further version-field edits. OpenClaw thanks @tdjackey for reporting.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

08

references (22)

External citations — patches, advisories, analysis.

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