How severe is CVE-2026-36719?

CVE-2026-36719 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-36719 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-36719?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-36719 have an EU (EUVD) identifier?

Yes. CVE-2026-36719 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35921.

When was CVE-2026-36719 published?

CVE-2026-36719 was published on 2026-06-09 and last updated on 2026-06-17.

CVE-2026-36719

CVE-2026-36719 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35921
Weakness: CWE-200
Published: 2026-06-09
Last modified: 2026-06-17

Description

An information disclosure vulnerability in the /api/v1/user/info endpoint of AgentChat v2.3.0 allows unauthenticated attackers to obtain sensitive information, including SHA256 password hashes, via enumerating user IDs.

Frequently asked questions

What is CVE-2026-36719?: An information disclosure vulnerability in the /api/v1/user/info endpoint of AgentChat v2.3.0 allows unauthenticated attackers to obtain sensitive information, including SHA256 password hashes, via enumerating user IDs.
How severe is CVE-2026-36719?: CVE-2026-36719 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-36719 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-36719?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-36719 have an EU (EUVD) identifier?: Yes. CVE-2026-36719 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35921.
When was CVE-2026-36719 published?: CVE-2026-36719 was published on 2026-06-09 and last updated on 2026-06-17.

References

https://github.com/CC-T-454455/Vulnerabilities/tree/master/agent-chat/vulnerability-3

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