OpenClaw < 2026.2.21 - Client IP Spoofing via X-Forwarded-For Header Parsing
OpenClaw versions prior to 2026.2.21 improperly parse the left-most X-Forwarded-For header value when requests originate from configured trusted proxies, allowing attackers to spoof client IP addresses. In proxy chains that append or preserve header values, attackers can inject malicious header content to influence security decisions including authentication rate-limiting and IP-based access controls.
- Published
- Mar 19, 2026
- Updated
- Jun 23, 2026
- EPSS
- 0.3% · 26th percentile
- CWE
- CWE-345
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Report tools
Action score
25
Monitor
Low priority for now.
- CVSS
- 25 / 40 · 6.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · VulnCheck
- 6.3
- NVD has not scored this yet; the score shown is the CNA’s.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| openclaw | openclaw | cpe:2.3:a:openclaw:openclaw |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- openclaw openclawbefore 2026.2.21
Versions reported by the vendor
Affected version ranges reported by the assigning authority (VulnCheck). Independent of NVD's CPE analysis and usually ahead of it.
OpenClaw OpenClaw
- 2026.2.21not affected
- before 2026.2.21affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| npm | openclaw | before 2026.2.21 | 2026.2.21 |
Same product
openclaw: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-25253OpenClaw (aka clawdbot or Moltbot) before 2026.1.29 obtains a gatewayUrl value from a query string and automatically makes a WebSocket conne42Plan
- CVE-2026-30741A remote code execution (RCE) vulnerability in OpenClaw Agent Platform v2026.2.6 allows attackers to execute arbitrary code via a Request-Si39Monitor
- CVE-2026-43534OpenClaw < 2026.4.10 - Unsanitized External Input in Agent Hook Events37Monitor
- CVE-2026-33579OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device Pair Approval37Monitor
- CVE-2026-32917OpenClaw < 2026.3.13 - Remote Command Injection via Unsanitized iMessage Attachment Paths in SCP37Monitor
- CVE-2026-32987OpenClaw < 2026.3.13 - Bootstrap Setup Code Replay via Device Pairing37Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| OpenClaw OpenClaw | 2026.2.21 | Vendor (CNA) |
| npm:openclaw | 2026.2.21 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2026-4353447 days apartOpenClaw < 2026.4.10 - Unsanitized External Input in Agent Hook Events37Monitor
- CVE-2026-2845414 days apartOpenClaw < 2026.2.2 - Authorization Bypass via Unauthenticated Telegram Webhook32Monitor
- CVE-2026-2547428 days apartOpenClaw has a Telegram webhook request forgery (missing `channels.telegram.webhookSecret`) → auth bypass30Monitor
- CVE-2026-2632728 days apartOpenClaw allows unauthenticated discovery TXT records to steer routing and TLS pinning28Monitor
- CVE-2026-4499953 days apartOpenClaw < 2026.4.20 - Improper Trust Labeling in Isolated Cron Awareness Events25Monitor
- CVE-2026-3565922 days apartOpenClaw < 2026.3.22 - Unresolved Service Metadata Routing via Bonjour and DNS-SD Discovery20Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- Integrity
- Availability
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- X
Weakness class (CWE)
CWE-345 · Insufficient Verification of Data AuthenticityCVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/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
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- JSON Hijacking (aka JavaScript Hijacking)CAPEC-111likelihood: High · High
- Cache PoisoningCAPEC-141likelihood: High · High
- DNS Cache PoisoningCAPEC-142likelihood: High · High
- Content SpoofingCAPEC-148likelihood: Medium · Medium
- Spoofing of UDDI/ebXML MessagesCAPEC-218Medium
- Application API Message Manipulation via Man-in-the-MiddleCAPEC-384Low
- Transaction or Event Tampering via Application API ManipulationCAPEC-385Medium
- Application API Navigation RemappingCAPEC-386Medium
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- github.com/openclaw/openclaw/commit/07039dc089e51589a213ec0d16f8d6f2cd871fa1
- github.com/openclaw/openclaw/commit/8877bfd11ec7760b115b2d0d7500a45da2749747
- github.com/openclaw/openclaw/security/advisories/GHSA-2rgf-hm63-5qph
- www.vulncheck.com/advisories/openclaw-client-ip-spoofing-via-x-forwarded-for-header-parsing
Vendor advisories and official records. Exploit/PoC links are deliberately left out.