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.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-05-22T17:16:46.670Z and has not been modified since then. The NVD entry is currently Deferred.