PYSEC-2026-3819

    Dashboard / Vulnerabilities / PYSEC-2026-3819

    PYSEC-2026-3819

    Published: 10 Sept 2026Last Modified: 10 Sept 2026

    Summary: crewai-tools SSRF redirect bypass exposes internal services

    Details: CrewAI before 1.15.1 contains a server-side request forgery vulnerability in the validate_url function that performs one-shot DNS resolution and blocklist checks before returning the original URL unchanged. Attackers can bypass the security filter by supplying URLs that redirect to internal addresses or use DNS rebinding techniques to access internal services and cloud metadata endpoints.

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-62240, https://github.com/crewAIInc/crewAI/issues/6520, https://github.com/crewAIInc/crewAI/pull/6331, https://github.com/crewAIInc/crewAI/commit/5d4851eac797cafc45b726f65747fe2c9520fc42, https://github.com/crewAIInc/crewAI, https://github.com/crewAIInc/crewAI/releases/tag/1.15.1, https://www.vulncheck.com/advisories/crewai-ssrf-filter-bypass-via-http-redirect-in-scrape-tools, https://pypi.org/project/crewai-tools, https://github.com/advisories/GHSA-mr4r-hcgx-8p4h

    Affected packages

    Package

    Name: crewai-tools

    Purl: pkg:pypi/crewai-tools

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.15.1

    Affected versions

    0.0.1
    0.0.10
    0.0.11
    0.0.12
    0.0.14
    0.0.15
    0.0.16
    0.0.2
    0.0.3
    0.0.5
    0.0.6
    0.0.7
    0.0.9

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2026-3819 | CVE-DB