VulnSocial

CVE-2026-42420Disclosure(openclaw / openclaw)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

OpenClaw before 2026.4.8 contains improper input validation in base64 decode paths that allocate memory before enforcing decoded-size limits. Attackers can exploit multiple code paths to cause memory exhaustion or denial of service through crafted base64-encoded input.

openclaw CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • openclaw

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-04-28); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
openclaw
Products
openclaw

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-28: 1Mentions · 2026-04-29: 1Technical Details · 2026-04-28: 1Technical Details · 2026-04-29: 104-2804-29
Signal classification1 categories
Disclosure
2100.0%
Referenced assets3 URLs
Full discourse2 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-42420 Memory Exhaustion and Denial of Service in OpenClaw Before 2026.4... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-42420 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4

    Post summary

    Vulnerability CVE-2026-42420, a memory exhaustion DoS in OpenClaw prior to version 2026.4, is disclosed via a Vulmon link, with no PoC, exploit, or patch mentioned.

    0000049
    4.0K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-42420 OpenClaw before 2026.4.8 contains improper input validation in base64 decode paths that allocate memory before enforcing decoded-size limits. Attackers can exploit mu… https://www.cve.org/CVERecord?id=CVE-2026-42420

    Post summary

    The CVE-2026-42420 vulnerability in OpenClaw involves improper input validation leading to risk of memory issues; no PoC, patch, or active exploitation is mentioned.

    0000094
    57.3K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appopenclawopenclaw-node.js-

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