PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-34207 baptisteArno CVE debrief

A high-severity SSRF vulnerability was found in TypeBot versions prior to 3.16.0. The vulnerability allows attackers to forge requests to loopback, cloud metadata, and private network targets due to inadequate SSRF protection in Webhook / HTTP Request blocks. The protection mechanism only validates URL strings, blocked hostname literals, and literal IP formats without resolving DNS, enabling SSRF attacks. Affected users should be aware of this vulnerability and take immediate action to upgrade or apply mitigations.

Vendor
baptisteArno
Product
typebot.io
CVSS
HIGH 7.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-22
Original CVE updated
2026-07-23
Advisory published
2026-05-22
Advisory updated
2026-07-23

Who should care

Users of TypeBot versions prior to 3.16.0, security teams responsible for vulnerability management, and operators of affected systems should be aware of this high-severity SSRF vulnerability and take immediate action to upgrade to version 3.16.0 or apply compensating controls to mitigate potential attacks.

Technical summary

The SSRF protection in TypeBot's Webhook / HTTP Request blocks is inadequate, as it only validates URL strings, blocked hostname literals, and literal IP formats without resolving DNS. This allows attackers to bypass protection using hostnames that resolve to restricted IP addresses, such as 127.0.0.1, 169.254.169.254, or RFC1918/private space addresses. The vulnerability has been resolved in version 3.16.0, which properly validates DNS resolutions before allowing requests.

Defensive priority

High

Recommended defensive actions

  • Upgrade to TypeBot version 3.16.0 or later
  • Implement compensating controls to restrict outgoing requests
  • Monitor for suspicious activity
  • Perform inventory checks for affected versions
  • Review network configurations for exposed systems
  • Track exceptions and retest remediated assets
  • Document evidence of remediation efforts

Evidence notes

The CVE record was published on 2026-05-22T17:16:46.670Z and last modified on 2026-07-23T16:10:00.137Z. The NVD entry is currently Deferred. Evidence is limited to CVE and NVD information. Defenders should verify affected TypeBot versions and configurations. Limited source detail is available for further validation.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-34207 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-34207

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-34207 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-34207

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.