Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-35633— OpenClaw < 2026.3.22 - Unbounded Memory Allocation via Remote Media Error Responses

Quick assessment

Affected
OpenClaw OpenClaw
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenClaw是OpenClaw开源的一个智能人工助理。 OpenClaw 2026.3.22之前版本存在安全漏洞，该漏洞源于远程媒体HTTP错误处理存在无限制内存分配问题，可能导致过度内存消耗。

CVSS 5.3 · Medium EPSS 0.66% · P50

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
OpenClaw OpenClaw < 2026.3.22 affected
2026.3.22 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-35633

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
OpenClaw < 2026.3.22 - Unbounded Memory Allocation via Remote Media Error Responses
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaw before 2026.3.22 contains an unbounded memory allocation vulnerability in remote media HTTP error handling that allows attackers to trigger excessive memory consumption. Attackers can send crafted HTTP error responses with large bodies to remote media endpoints, causing the application to allocate unbounded memory before failure handling occurs.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的内存分配
Source: CVE Program / CVE List V5
Vulnerability Title
OpenClaw 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenClaw是OpenClaw开源的一个智能人工助理。 OpenClaw 2026.3.22之前版本存在安全漏洞，该漏洞源于远程媒体HTTP错误处理存在无限制内存分配问题，可能导致过度内存消耗。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenClaw OpenClaw 0 ~ 2026.3.22 -

II. Public POCs for CVE-2026-35633

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-35633

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-35633 (2)

Same Patch Batch · OpenClaw · 2026-04-09 · 25 CVEs total

CVE-2026-35638 8.8 HIGH OpenClaw < 2026.3.22 - Privilege Escalation via Self-Declared Scopes in Trusted-Proxy Cont
CVE-2026-35639 8.8 HIGH OpenClaw < 2026.3.22 - Privilege Escalation via device.pair.approve Scope Validation
CVE-2026-35645 8.1 HIGH OpenClaw < 2026.3.25 - Privilege Escalation via Synthetic operator.admin in deleteSession
CVE-2026-34512 8.1 HIGH OpenClaw < 2026.3.25 - Improper Access Control in /sessions/:sessionKey/kill Endpoint
CVE-2026-35625 7.8 HIGH OpenClaw < 2026.3.25 - Privilege Escalation via Silent Local Shared-Auth Reconnect
CVE-2026-35629 7.4 HIGH OpenClaw < 2026.3.25 - Server-Side Request Forgery via Unguarded Configured Base URLs in C
CVE-2026-35637 7.3 HIGH OpenClaw < 2026.3.22 - Premature Cite Expansion Before Authorization in Channel and DM
CVE-2026-35632 7.1 HIGH OpenClaw <= 2026.2.22 - Symlink Traversal via IDENTITY.md appendFile in agents.create/upda
CVE-2026-35644 6.5 MEDIUM OpenClaw < 2026.3.22 - Credential Exposure via baseUrl Fields in Gateway Snapshots
CVE-2026-35636 6.5 MEDIUM OpenClaw 2026.3.11 < 2026.3.25 - Session Isolation Bypass via sessionId Resolution
CVE-2026-35631 6.5 MEDIUM OpenClaw < 2026.3.22 - Missing Authorization Enforcement in Internal ACP Chat Commands
CVE-2026-35627 6.5 MEDIUM OpenClaw < 2026.3.22 - Unauthenticated Cryptographic Work in Nostr Inbound DM Handling
CVE-2026-35618 6.5 MEDIUM OpenClaw < 2026.3.23 - Replay Identity Drift via Query-Only Variants in Plivo V2 Verificat
CVE-2026-35622 5.9 MEDIUM OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook
CVE-2026-35640 5.3 MEDIUM OpenClaw < 2026.3.25 - Denial of Service via Unauthenticated Webhook Request Parsing
CVE-2026-35626 5.3 MEDIUM OpenClaw < 2026.3.22 - Unauthenticated Resource Exhaustion via Voice Call Webhook
CVE-2026-35634 5.1 MEDIUM OpenClaw < 2026.3.23 - Authentication Bypass via Local-Direct Requests in Canvas Gateway
CVE-2026-35628 4.8 MEDIUM OpenClaw < 2026.3.25 - Brute-Force Attack via Missing Telegram Webhook Rate Limiting
CVE-2026-35646 4.8 MEDIUM OpenClaw < 2026.3.25 - Pre-Authentication Rate-Limit Bypass in Webhook Token Validation
CVE-2026-35623 4.8 MEDIUM OpenClaw < 2026.3.25 - Brute-Force Attack via Missing Webhook Password Rate Limiting

Showing top 20 of 25 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: OpenClaw
Same vendor: OpenClaw
Same weakness: CWE-789

V. Comments for CVE-2026-35633

No comments yet

Leave a comment