Is CVE-2026-42346 actively exploited?

No active exploitation of CVE-2026-42346 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42346 be exploited remotely?

Yes. CVE-2026-42346 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42346?

CVE-2026-42346 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-42346

CWE-918Published: May 8, 2026· Updated: May 13, 2026

6.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.2th

Official Description

Postiz is an AI social media scheduling tool. From version 2.16.6 to before version 2.21.7, all SSRF protections added in v2.21.4–v2.21.6 share a fundamental TOCTOU (Time-of-Check-Time-of-Use) vulnerability: isSafePublicHttpsUrl() resolves DNS to validate the target IP, but subsequent fetch() calls resolve DNS independently. An attacker controlling a DNS server can exploit this gap via DNS rebinding to redirect requests to internal network addresses. This issue has been patched in version 2.21.7.

NVD Source

Technical Analysis

CVE-2026-42346 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.