CVE-2026-85499: Auth Bypass (CVSS 9.1)

Description

Improper Authorization vulnerability in Apache SkyWalking BanyanDB. The Canopy includes incomplete proof-of-concept role and monitoring-proxy functionality. Under a non-default configuration with a readonly Canopy user and a reachable monitoring target, that user can send non-read requests through the monitoring proxy. This issue affects Apache SkyWalking BanyanDB: from 0.11.0 before 0.11.1. Users are recommended to upgrade to version 0.11.1, which fixes the issue.

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CVSS v3.1 Score

9.1

CRITICAL

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

EPSS — Exploit Prediction

0.0027

Probability of exploitation

0.19%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-863 Incorrect Authorization

References

Other References

https://lists.apache.org/thread.html/qz1ogm6b37gfqq04y0lkdj8x1zr5cb4r http://www.openwall.com/lists/oss-security/2026/09/28/5

Frequently Asked Questions

What is CVE-2026-85499? +

Improper Authorization vulnerability in Apache SkyWalking BanyanDB. The Canopy includes incomplete proof-of-concept role and monitoring-proxy functionality. Under a non-default configuration with a readonly Canopy user and a reachable monitoring target, that user can send non-read requests through the monitoring proxy. This issue affects Apache SkyWalking BanyanDB: from 0.11.0 before 0.11.1. Users are recommended to upgrade to version 0.11.1, which fixes the issue. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-85499? +

CVE-2026-85499 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0027, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-85499? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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