What is CVE-2026-16764?
A vulnerability was identified in OWASP DefectDojo 2.59.0. This issue affects the function UserSerializer of the file dojo/api_v2/serializers.py of the component API/Web. Such manipulation of the argument is_staff leads to improper privilege management. The attack may be performed from remote. The exploit is publicly available and might be used. Upgrading to version 2.58.3 and 3.0.0 is capable of addressing this issue. The name of the patch is 68a272f299d096249fd3ba9c2676bf69012857bf. It is advisable to upgrade the affected component. 2.59.0 was not intended to be released and has been removed.
The record classifies CVE-2026-16764 under weakness classes CWE-269, CWE-266. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 74 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 6.3 — MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C - CVSS v4.0 base score
- 5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P - EPSS (FIRST)
- 0.2% probability of exploitation in the next 30 days, higher than 14.3% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 3.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-07-23, last modified 2026-07-24
Is CVE-2026-16764 being exploited?
It currently carries a trending score of 33 in the Threadlinqs vulnerability feed.
Affected products and versions
- OWASP: DefectDojo
How to fix CVE-2026-16764
No vendor patch reference has been recorded for CVE-2026-16764 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-16764
No threat campaign in the Threadlinqs corpus currently references CVE-2026-16764, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.
Sources
Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on .