CVE-2026-6832

Name: CVE-2026-6832
Creator: NVD / NIST
Published: 2026-04-21T22:16:21.04+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2026-6832 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Hermes WebUI contains an arbitrary file deletion vulnerability in the /api/session/delete endpoint that allows authenticated attackers to delete files outside the session directory by supplying an absolute path or path traversal payload in the session_id parameter. Attackers can exploit unvalidated session identifiers to construct paths that bypass the SESSION_DIR boundary and delete writable JSON files on the host system.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

Hermes WebUI contains an arbitrary file deletion vulnerability in the /api/session/delete endpoint that allows authenticated attackers to delete files outside the session directory by supplying an absolute path or path traversal payload in the session_id parameter. Attackers can exploit unvalidated session identifiers to construct paths that bypass the SESSION_DIR boundary and delete writable JSON files on the host system.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CVSS 4.0

7.2/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.47%

37.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Get-Hermes	Hermes Web Ui	< 0.50.32

References

https://github.com/nesquena/hermes-webui/commit/3cc5839bf303fa6758bfdac538507407a2929655Patch
https://github.com/nesquena/hermes-webui/pull/409Exploit, Issue Tracking, Patch, Vendor Advisory
https://github.com/nesquena/hermes-webui/pull/412Issue Tracking, Patch
https://github.com/nesquena/hermes-webui/releases/tag/v0.50.132Product, Release Notes
https://github.com/nesquena/hermes-webui/releases/tag/v0.50.32Product, Release Notes
https://www.vulncheck.com/advisories/nesquena-hermes-webui-arbitrary-file-deletion-via-unvalidated-session-idThird Party Advisory

Timeline

Published: Apr 21, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-6832?

How severe is CVE-2026-6832?

CVE-2026-6832 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2026-6832?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-6832?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST