CVE-2026-39969

MEDIUMNVD 6.56.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.2% (4th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated
6.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint (POST /v1/workspaces/{workspaceId}/whatsapp/{credentialsId}/webhook) does not verify the x-hub-signature-256 HMAC signature included by Meta in every webhook delivery. The webhook URL exposes both workspaceId and credentialsId as path parameters, which are logged in web server access logs, visible in Meta's webhook configuration dashboard, and potentially shared when configuring integrations. This allows any unauthenticated attacker to send spoofed webhook messages to trigger bot flows, consume API resources, and interact with external services using the workspace owner's credentials. The issue has been fixed in version 3.17.0.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
60
EG Risk 60/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
4th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 22, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jun 14, 2026
Patch available. Sources: github_release, github.
GitHub advisoryMentions a patch (unverified)

WhatsApp Webhook Endpoint Missing Signature Verification · Advisory · baptisteArno/typebot.io · GitHub

https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-8vqp-r5w7-v47f
GitHub release Patch Available

v3.17.0

Patch available: baptisteArno/typebot.io v3.17.0

https://github.com/baptisteArno/typebot.io/releases/tag/v3.17.0

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 27× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 95 of 178 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 5 repeat rows among the latest 100 are merged into the row they repeat. The 83 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  3. 2026-10-12 16:10 UTCEG score recompute
  4. 2026-10-11 19:52 UTCEG score recompute
  5. 2026-10-11 17:05 UTCEG score recompute
  6. 2026-10-11 14:32 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  10. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  11. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  12. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  13. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  14. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  15. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  16. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  17. 2026-09-30 02:39 UTCOSV refresh
  18. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  19. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  20. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  21. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  22. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
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  1. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  4. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  5. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-09-11 03:53 UTCOSV refresh
  8. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  11. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  13. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  15. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  16. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  20. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-08-23 16:41 UTCEG score recompute
  22. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-08-21 21:40 UTCEG score recompute
  25. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  26. 2026-08-20 18:39 UTCEG score recompute
  27. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  28. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  29. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  30. 2026-08-17 09:43 UTCEG score recompute
  31. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  32. 2026-08-16 05:42 UTCEG score recompute
  33. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  34. 2026-08-15 03:48 UTCEG score recompute
  35. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  36. 2026-08-14 01:53 UTCEG score recompute
  37. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  38. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  39. 2026-08-12 11:52 UTCEG score recompute
  40. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  41. 2026-08-11 08:27 UTCEG score recompute
  42. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  43. 2026-08-10 06:32 UTCEG score recompute
  44. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  45. 2026-08-09 04:38 UTCEG score recompute
  46. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  47. 2026-08-08 02:44 UTCEG score recompute
  48. 2026-08-07 00:50 UTCEG score recompute
  49. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  50. 2026-08-05 21:10 UTCEG score recompute
  51. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  52. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  53. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  54. 2026-08-03 21:00 UTCEG score recompute
  55. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  56. 2026-08-02 19:06 UTCEG score recompute
  57. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  58. 2026-08-01 17:11 UTCEG score recompute
  59. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  60. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  61. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  62. 2026-07-29 17:30 UTCEG score recompute
  63. 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  64. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  65. 2026-07-26 08:06 UTCEG score recompute
  66. 2026-07-25 14:18 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  67. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  68. 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  69. 2026-07-23 03:10 UTCEG score recompute
  70. 2026-07-22 14:08 UTCEPSS rescoreEPSS 0.1% · 3rd percentile

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Frequently asked(5)

What is CVE-2026-39969?
CVE-2026-39969 is a medium-severity vulnerability; its CVE record was published on May 22, 2026. TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint (POST /v1/workspaces/{workspaceId}/whatsapp/{credentialsId}/webhook) does not verify the x-hub-signature-256 HMAC signature included by Meta in every webhook delivery. The webhook URL exposes…
When was the CVE record for CVE-2026-39969 published?
The CVE record for CVE-2026-39969 was published on May 22, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 23, 2026; the record at its source may have been updated since.
Is CVE-2026-39969 actively exploited?
CVE-2026-39969 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-39969?
CVE-2026-39969 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-39969?
A fix for CVE-2026-39969 is available: update to the fixed version the vendor names in its advisory.

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