CVE-2023-20902: Timing attack risk in Harbor

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-11-09 · updated 2026-06-17
Weakness: CWE-362

Description

A timing condition in Harbor 2.6.x and below, Harbor 2.7.2 and below, Harbor 2.8.2 and below, and Harbor 1.10.17 and below allows an attacker with network access to create jobs/stop job tasks and retrieve job task information.

Affected products

Harbor: before 1.10.17; from 2.6.0 through 2.6.4; from 2.7.0 before 2.7.3; from 2.8.0 before 2.8.3 — fixed in 1.10.17, 2.7.3, 2.8.3

How to fix

Upgrade to a fixed version: Harbor 1.10.17, 2.7.3, 2.8.3. Check the vendor advisory for mitigations.

References

https://github.com/goharbor/harbor/security/advisories/GHSA-mq6f-5xh5-hgcf
https://github.com/goharbor/harbor/security/advisories/GHSA-mq6f-5xh5-hgcf

Get alerted when CVE-2023-20902 or the next vulnerability affects your stack