CVE-2026-53860

LOW 2.3

Published 2026-06-16 · Last modified 2026-06-16

OpenClaw before 2026.5.7 contains a sender policy bypass vulnerability in BlueBubbles that allows participants to match allowlist entries through conversation metadata rather than stable sender identity. Attackers can influence conversation-level identifiers to receive agent responses intended for configured senders, potentially bypassing access controls.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 7th percentile

○ In CISA KEV ○ Public exploit / PoC

Impact if exploited

2.3CVSS 4.0 · LOW

ConfidentialityLow
IntegrityLow
AvailabilityNone

What an attacker needs

✓Access: Reachable over the network — no local access needed
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
⚠Complexity: Needs a race window or specific setup
⚠Requirements: Specific conditions must be present

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

github-search Search GitHub for public PoC repos

Test against your own equipment

curl -s https://vulnpedia.com/cve/CVE-2026-53860/poc.jsonMachine-readable PoC index for this CVE (for automation).

Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-53860/poc.json

Affected

Vendors Openclaw

Products Openclaw

Weakness (CWE)

CWE-807: Reliance on Untrusted Inputs in a Security Decision
CWE-863: Incorrect Authorization

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Known Affected Software Configurations

Vendor	Product	Version range
Openclaw	Openclaw	< 2026.5.7
Openclaw	Openclaw	2026.5.7

All CVSS metrics

LOW 2.3 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
MEDIUM 4.2 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
LOW 2.3 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/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
MEDIUM 4.2 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
MEDIUM 5.4 v3.1 · NVD Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Advisories

https://github.com/openclaw/openclaw/security/advisories/GHSA-8j37-5w68-wj2g vendor-advisoryVendor Advisory
https://www.vulncheck.com/advisories/openclaw-sender-policy-bypass-via-mutable-conversation-identifiers-in-bluebubbles third-party-advisoryThird Party Advisory

Sources: NVD · CVE.org · EPSS