CVE-2026-6635

rowboatlabs rowboat tools_webhook app.py tool_call improper authentication

Published Apr 20, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Description

A security vulnerability has been detected in rowboatlabs rowboat up to 0.1.67. This impacts the function tool_call of the file apps/experimental/tools_webhook/app.py of the component tools_webhook. Such manipulation of the argument X-Tools-JWE leads to improper authentication. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

rowboatlabs

rowboat

affected

Version	Status	Constraints
`0.1.0`	affected	—
`0.1.1`	affected	—
`0.1.2`	affected	—
`0.1.3`	affected	—
`0.1.4`	affected	—
`0.1.5`	affected	—
`0.1.6`	affected	—
`0.1.7`	affected	—
`0.1.8`	affected	—
`0.1.9`	affected	—
`0.1.10`	affected	—
`0.1.11`	affected	—
`0.1.12`	affected	—
`0.1.13`	affected	—
`0.1.14`	affected	—
`0.1.15`	affected	—
`0.1.16`	affected	—
`0.1.17`	affected	—
`0.1.18`	affected	—
`0.1.19`	affected	—
`0.1.20`	affected	—
`0.1.21`	affected	—
`0.1.22`	affected	—
`0.1.23`	affected	—
`0.1.24`	affected	—
`0.1.25`	affected	—
`0.1.26`	affected	—
`0.1.27`	affected	—
`0.1.28`	affected	—
`0.1.29`	affected	—
`0.1.30`	affected	—
`0.1.31`	affected	—
`0.1.32`	affected	—
`0.1.33`	affected	—
`0.1.34`	affected	—
`0.1.35`	affected	—
`0.1.36`	affected	—
`0.1.37`	affected	—
`0.1.38`	affected	—
`0.1.39`	affected	—
`0.1.40`	affected	—
`0.1.41`	affected	—
`0.1.42`	affected	—
`0.1.43`	affected	—
`0.1.44`	affected	—
`0.1.45`	affected	—
`0.1.46`	affected	—
`0.1.47`	affected	—
`0.1.48`	affected	—
`0.1.49`	affected	—
`0.1.50`	affected	—
`0.1.51`	affected	—
`0.1.52`	affected	—
`0.1.53`	affected	—
`0.1.54`	affected	—
`0.1.55`	affected	—
`0.1.56`	affected	—
`0.1.57`	affected	—
`0.1.58`	affected	—
`0.1.59`	affected	—
`0.1.60`	affected	—
`0.1.61`	affected	—
`0.1.62`	affected	—
`0.1.63`	affected	—
`0.1.64`	affected	—
`0.1.65`	affected	—
`0.1.66`	affected	—
`0.1.67`	affected	—

No data.

Vendor Product Versions

Rowboatlabs

Rowboat

Version	Status	Scheme	Platform
`0.1.0`	affected	semver	—
`0.1.1`	affected	semver	—
`0.1.2`	affected	semver	—
`0.1.3`	affected	semver	—
`0.1.4`	affected	semver	—
`0.1.5`	affected	semver	—
`0.1.6`	affected	semver	—
`0.1.7`	affected	semver	—
`0.1.8`	affected	semver	—
`0.1.9`	affected	semver	—
`0.1.10`	affected	semver	—
`0.1.11`	affected	semver	—
`0.1.12`	affected	semver	—
`0.1.13`	affected	semver	—
`0.1.14`	affected	semver	—
`0.1.15`	affected	semver	—
`0.1.16`	affected	semver	—
`0.1.17`	affected	semver	—
`0.1.18`	affected	semver	—
`0.1.19`	affected	semver	—
`0.1.20`	affected	semver	—
`0.1.21`	affected	semver	—
`0.1.22`	affected	semver	—
`0.1.23`	affected	semver	—
`0.1.24`	affected	semver	—
`0.1.25`	affected	semver	—
`0.1.26`	affected	semver	—
`0.1.27`	affected	semver	—
`0.1.28`	affected	semver	—
`0.1.29`	affected	semver	—
`0.1.30`	affected	semver	—
`0.1.31`	affected	semver	—
`0.1.32`	affected	semver	—
`0.1.33`	affected	semver	—
`0.1.34`	affected	semver	—
`0.1.35`	affected	semver	—
`0.1.36`	affected	semver	—
`0.1.37`	affected	semver	—
`0.1.38`	affected	semver	—
`0.1.39`	affected	semver	—
`0.1.40`	affected	semver	—
`0.1.41`	affected	semver	—
`0.1.42`	affected	semver	—
`0.1.43`	affected	semver	—
`0.1.44`	affected	semver	—
`0.1.45`	affected	semver	—
`0.1.46`	affected	semver	—
`0.1.47`	affected	semver	—
`0.1.48`	affected	semver	—
`0.1.49`	affected	semver	—
`0.1.50`	affected	semver	—
`0.1.51`	affected	semver	—
`0.1.52`	affected	semver	—
`0.1.53`	affected	semver	—
`0.1.54`	affected	semver	—
`0.1.55`	affected	semver	—
`0.1.56`	affected	semver	—
`0.1.57`	affected	semver	—
`0.1.58`	affected	semver	—
`0.1.59`	affected	semver	—
`0.1.60`	affected	semver	—
`0.1.61`	affected	semver	—
`0.1.62`	affected	semver	—
`0.1.63`	affected	semver	—
`0.1.64`	affected	semver	—
`0.1.65`	affected	semver	—
`0.1.66`	affected	semver	—
`0.1.67`	affected	semver	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.466% probability within 30 days)

Exploitation poc

Automatable yes

Technical Impact partial

References

Link	Providers
https://github.com/Dave-gilmore-aus/security-advisories/blob/main/rowbat-advisory
https://vuldb.com/submit/793433
https://vuldb.com/vuln/358269
https://vuldb.com/vuln/358269/cti

History

Apr 20, 2026 2:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Apr 20, 2026 1:45 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Rowboatlabs Rowboatlabs rowboat
Vendors & Products		Rowboatlabs Rowboatlabs rowboat

Apr 20, 2026 12:00 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A security vulnerability has been detected in rowboatlabs rowboat up to 0.1.67. This impacts the function tool_call of the file apps/experimental/tools_webhook/app.py of the component tools_webhook. Such manipulation of the argument X-Tools-JWE leads to improper authentication. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Title		rowboatlabs rowboat tools_webhook app.py tool_call improper authentication
Weaknesses		CWE-287
References		https://github.com/Dave-gilmore-aus/security-advisories/blob/main/rowbat-advisory https://vuldb.com/submit/793433 https://vuldb.com/vuln/358269 https://vuldb.com/vuln/358269/cti
Metrics		cvssV2_0 `{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}` cvssV3_0 `{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV3_1 `{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV4_0 `{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}`