🛡️ CVE-2026-53871

🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-565 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Hermes WebUI before 0.51.368 contains an authorization bypass vulnerability in the get_profile_cookie() function that accepts unauthenticated profile names from the hermes_profile cookie. An authenticated attacker can forge the hermes_profile cookie value to bypass profile-scoped authorization checks and access sessions, files, and resources across different profiles.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

Weakness class

CVE-2026-53871 is classified as CWE-565: Reliance on Cookies without Validation. Security decisions are based on cookie values that the client can freely modify.

Affected software

CVE-2026-53871 is recorded against 1 package.

  • unknown

Timeline and source

Published on 17 June 2026 and last revised on 18 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
github.com
github.com
github.com
www.vulncheck.com

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE CWE-565
Public Exploit ✅ No
Source NVD
Published 2026-06-17
Updated 2026-08-11
Modified 2026-06-18
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.