CVE-2026-61436

HIGHPre-NVD 8.68.6
EchelonGraph scoreMEDIUM confidence

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

Score 8.6 from GitHub Security Advisory (severity: HIGH) published 2026-07-15. A secondary CVSS source baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Elevated
8.6EG
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: 0.3%CVSS: 8.6Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

PraisonAI before 4.6.78 fails to verify Svix webhook signatures in AgentMail webhook mode, allowing unauthenticated attackers to forge message.received events. Attackers can send crafted JSON payloads to the webhook endpoint to invoke configured agents with arbitrary sender addresses and message content.

CVSS v3
8.6
EG Score
8.6HIGHmedium confidence
EG Risk
70
EG Risk 70/100

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)
Severity86% × 45%
The EG Score, 8.6 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
0.3%
EPSS %ILE
21st
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

July 15, 2026

Last Modified

July 15, 2026

Advisory Details (4)

Auto-updated Jul 15, 2026
Patch available. Sources: github_commit, github.
Web page

PraisonAI before 4.6.78 Missing Webhook Signature Verification | Advisories | VulnCheck

https://www.vulncheck.com/advisories/praisonai-before-missing-webhook-signature-verification
GitHub advisoryMentions a patch (unverified)

AgentMail webhook mode accepts forged unsigned message.received events and invokes agents · Advisory · MervinPraison/PraisonAI · GitHub

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7c92-x8vg-4258
GitHub commit Patch Available

commit 846568c7a5d8 (MervinPraison/PraisonAI)

Patch available: MervinPraison/PraisonAI v4.6.118 (contains commit 846568c7a5d8)

https://github.com/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56e4c213f027c04909753
GitHub commit Patch Available

commit 2a855c470077 (MervinPraison/PraisonAI)

Patch available: MervinPraison/PraisonAI v4.6.118 (contains commit 2a855c470077)

https://github.com/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479a575f7ef7f548d51c33

Vendor Advisories for CVE-2026-61436(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
praisonai0.0.1 ... 4.6.9 (763 versions)
  • every version up to 4.6.78: fixed in 4.6.78
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 35× 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 100 of 217 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. None are among the latest 100 rows. The 117 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 0.3% · 21st percentile
  2. 2026-10-13 13:25 UTCEG score recompute
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  4. 2026-10-12 15:50 UTCEG score recompute
  5. 2026-10-11 19:34 UTCEG score recompute
  6. 2026-10-11 16:49 UTCEG score recompute
  7. 2026-10-11 14:11 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  11. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  16. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-10-01 12:42 UTCEG score recompute
  20. 2026-10-01 12:42 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  21. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  22. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  23. 2026-09-28 08:47 UTCEG score recompute
  24. 2026-09-28 08:47 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  25. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 41st percentile
Show 75 more
  1. 2026-09-24 08:54 UTCEG score recompute
  2. 2026-09-24 08:54 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  3. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  4. 2026-09-23 03:22 UTCEG score recompute
  5. 2026-09-23 03:22 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  6. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-09-18 04:47 UTCEG score recompute
  8. 2026-09-18 04:47 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  9. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-09-14 10:56 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  12. 2026-09-13 23:13 UTCEG score recompute
  13. 2026-09-13 23:13 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  14. 2026-09-13 07:17 UTCEG score recompute
  15. 2026-09-13 07:17 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  16. 2026-09-12 13:05 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  17. 2026-09-11 21:47 UTCEG score recompute
  18. 2026-09-11 21:47 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  19. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  20. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  23. 2026-09-08 00:57 UTCEG score recompute
  24. 2026-09-08 00:57 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  25. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  26. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  27. 2026-09-06 13:29 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  28. 2026-09-05 20:52 UTCEG score recompute
  29. 2026-09-05 20:52 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  30. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  31. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  32. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  33. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  34. 2026-08-31 03:59 UTCEG score recompute
  35. 2026-08-31 03:59 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  36. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  37. 2026-08-30 16:05 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  38. 2026-08-30 03:55 UTCEG score recompute
  39. 2026-08-30 03:55 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  40. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  41. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  42. 2026-08-28 01:52 UTCEG score recompute
  43. 2026-08-28 01:52 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  44. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  45. 2026-08-27 12:44 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  46. 2026-08-26 23:43 UTCEG score recompute
  47. 2026-08-26 23:43 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  48. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  49. 2026-08-26 12:01 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  50. 2026-08-25 21:06 UTCEG score recompute
  51. 2026-08-25 21:06 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  52. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  53. 2026-08-25 09:18 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  54. 2026-08-24 21:43 UTCEG score recompute
  55. 2026-08-24 21:43 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  56. 2026-08-24 09:39 UTCEG score recompute
  57. 2026-08-24 09:39 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  58. 2026-08-23 22:02 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  59. 2026-08-23 10:25 UTCEG score recompute
  60. 2026-08-23 10:25 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  61. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  62. 2026-08-22 22:36 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  63. 2026-08-22 10:59 UTCEG score recompute
  64. 2026-08-22 10:59 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  65. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  66. 2026-08-21 23:23 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  67. 2026-08-21 11:47 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  68. 2026-08-20 23:53 UTCEG score recompute
  69. 2026-08-20 23:53 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  70. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  71. 2026-08-20 12:16 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  72. 2026-08-20 00:18 UTCEG score recompute
  73. 2026-08-20 00:18 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6
  74. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  75. 2026-08-19 09:30 UTCGHSA enrichmentGHSA-m64w-vfg6-36ph · GitHub severity HIGH · GitHub CVSS 8.6

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-61436?
CVE-2026-61436 is a high-severity vulnerability; its CVE record was published on July 15, 2026. PraisonAI before 4.6.78 fails to verify Svix webhook signatures in AgentMail webhook mode, allowing unauthenticated attackers to forge message.received events. Attackers can send crafted JSON payloads to the webhook endpoint to invoke configured agents with arbitrary sender addresses and message…
When was CVE-2026-61436 made public?
CVE-2026-61436 was made public on June 25, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on July 15, 2026. EchelonGraph's copy of the record carries a last-modified date of July 15, 2026; the record at its source may have been updated since.
Is CVE-2026-61436 actively exploited?
CVE-2026-61436 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-61436?
CVE-2026-61436 has a CVSS base score of 8.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-61436?
A fix for CVE-2026-61436 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-61436 are linked in the Vendor Advisories panel on this page.

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