CVE-2026-39965

HIGHNVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 85% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.7Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

TypeBot is a chatbot builder tool. Versions 3.15.2 and prior contain an SSRF via Open Redirect Bypass as the HTTP Request block and Code block validate the initial request URL via validateHttpReqUrl() to block private IPs and cloud metadata hostnames. However, the HTTP clients (ky and fetch) follow 302 redirects without re-validating the redirect destination. An authenticated user can point a bot block to an attacker-controlled server that responds with a redirect to an internal IP, causing the Typebot server to reach internal services. An authenticated Typebot user can reach AWS metadata (169.254.169.254), private subnets, and container-internal services. Exploitable to extract cloud IAM credentials or probe internal APIs inaccessible from the internet. This issue has been fixed in version 3.16.0.

CVSS v3
7.7
EG Score
7.7(medium)
EPSS
14.9%
KEV
Not listed

Published

May 22, 2026

Last Modified

May 22, 2026

Advisory Details (2)

Auto-updated Jun 4, 2026
Patch available. Sources: github_release, github.
github Patch Available

SSRF via Open Redirect Bypass in HTTP Request and Code Blocks · Advisory · baptisteArno/typebot.io · GitHub

https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-jxv3-m939-w95c
github_release Patch Available

v3.16.0

Patch available: baptisteArno/typebot.io v3.16.0

https://github.com/baptisteArno/typebot.io/releases/tag/v3.16.0

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 113 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
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  20. 2026-06-29 16:36 UTCEG score recompute
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  24. 2026-06-28 08:48 UTCEG score recompute
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  1. 2026-06-27 20:16 UTCEG score recompute
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  3. 2026-06-27 03:08 UTCEPSS rescore
  4. 2026-06-26 19:12 UTCEG score recompute
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  6. 2026-06-25 13:56 UTCEG score recompute
  7. 2026-06-25 13:49 UTCEPSS rescore
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  19. 2026-06-17 23:40 UTCEG score recompute
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  23. 2026-06-16 17:52 UTCEPSS rescore
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  25. 2026-06-15 17:49 UTCEPSS rescore
  26. 2026-06-15 14:53 UTCEG score recompute
  27. 2026-06-14 23:18 UTCEPSS rescore
  28. 2026-06-14 22:56 UTCEG score recompute
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  30. 2026-06-13 21:51 UTCEG score recompute
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  32. 2026-06-12 23:12 UTCEPSS rescore
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  39. 2026-06-10 22:18 UTCEPSS rescore
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  45. 2026-06-08 14:17 UTCEPSS rescore
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  49. 2026-06-07 15:25 UTCEPSS rescore
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  52. 2026-06-07 09:03 UTCEG score recompute
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  54. 2026-06-06 13:47 UTCEPSS rescore
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  56. 2026-06-06 07:59 UTCEG score recompute
  57. 2026-06-05 22:47 UTCEPSS rescore
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  59. 2026-06-05 19:26 UTCEG score recompute
  60. 2026-06-05 06:54 UTCEG score recompute
  61. 2026-06-05 06:10 UTCEPSS rescore
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  63. 2026-06-04 18:22 UTCEG score recompute
  64. 2026-06-04 13:12 UTCEPSS rescore
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  66. 2026-06-04 05:50 UTCEG score recompute
  67. 2026-06-03 17:18 UTCEG score recompute
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  69. 2026-06-02 20:13 UTCEPSS rescore
  70. 2026-06-02 16:13 UTCEG score recompute
  71. 2026-06-02 03:40 UTCEG score recompute
  72. 2026-06-01 15:08 UTCEG score recompute
  73. 2026-06-01 13:52 UTCEPSS rescore
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  75. 2026-06-01 13:51 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-39965?
CVE-2026-39965 is a high vulnerability published on May 22, 2026. TypeBot is a chatbot builder tool. Versions 3.15.2 and prior contain an SSRF via Open Redirect Bypass as the HTTP Request block and Code block validate the initial request URL via validateHttpReqUrl() to block private IPs and cloud metadata hostnames. However, the HTTP clients (ky and fetch) follow…
When was CVE-2026-39965 disclosed?
CVE-2026-39965 was first published in the National Vulnerability Database on May 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-39965 actively exploited?
CVE-2026-39965 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 14.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-39965?
CVE-2026-39965 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-39965?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-39965, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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