PraisonAI AgentMail versions before 4.6.78 lack signature verification in webhook mode, allowing unauthenticated attackers to inject messages with spoofed sender addresses. Attackers can POST crafted message.received events to the webhook endpoint to inject arbitrary content into the agent and trigger replies to attacker-controlled addresses, bypassing sender allow/block lists.
CVE-2026-61428
HIGHPre-NVD 7.37.3—Trending — 3 sources updated this week
EchelonGraph scoreHIGH confidence
Score 7.3 from GitHub Security Advisory published 2026-07-11. a secondary CVSS source baseline 7.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: —CVSS: 7.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(high)
- EPSS
- —
- KEV
- Not listed
Published
July 11, 2026
Last Modified
July 11, 2026
Advisory Details (2)
Auto-updated Jul 11, 2026🔬 Proof of concept available. Patch available. Sources: github.
generic
PraisonAI AgentMail before 4.6.78 Message Injection via Webhook | Advisories | VulnCheck
https://www.vulncheck.com/advisories/praisonai-agentmail-before-message-injection-via-webhookgithub Patch Available🟡 PoC Available
AgentMail webhook lacks signature verification, allowing unauthenticated message injection and sender spoofing · Advisory · MervinPraison/PraisonAI · GitHub
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qj9c-59p6-8cgxVendor Advisories for CVE-2026-61428(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 4× 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.
- 2026-07-12 02:33 UTCEG score recompute
- 2026-07-12 02:33 UTCGHSA enrichment
- 2026-07-11 13:33 UTCEG score recompute
- 2026-07-11 13:32 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-290
Frequently asked(4)
What is CVE-2026-61428?
CVE-2026-61428 is a high vulnerability published on July 11, 2026. PraisonAI AgentMail versions before 4.6.78 lack signature verification in webhook mode, allowing unauthenticated attackers to inject messages with spoofed sender addresses. Attackers can POST crafted message.received events to the webhook endpoint to inject arbitrary content into the agent and…
When was CVE-2026-61428 disclosed?
CVE-2026-61428 was first published in the National Vulnerability Database on July 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-61428?
CVE-2026-61428 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-61428?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61428, 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.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-61428
Is Your Infrastructure Affected by CVE-2026-61428?
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