CVE-2023-2253
CWE-475Published: June 6, 2023· Updated: Jun 17, 2026
Official Description
A flaw was found in the `/v2/_catalog` endpoint in distribution/distribution, which accepts a parameter to control the maximum number of records returned (query string: `n`). This vulnerability allows a malicious user to submit an unreasonably large value for `n,` causing the allocation of a massive string array, possibly causing a denial of service through excessive use of memory.
Technical Analysis
CVE-2023-2253 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-475)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-2253 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts