CVE-2026-25155
Published: 03 February 2026
Summary
CVE-2026-25155 is a medium-severity CSRF (CWE-352) vulnerability in Qwik Qwik. Its CVSS base score is 5.9 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 0.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2026-25155 affects Qwik, a performance-focused JavaScript framework, in versions prior to 1.12.0. The vulnerability stems from a typo in the regular expression used within the isContentType function, leading to incorrect parsing of certain Content-Type headers. This issue is classified under CWE-352 and carries a CVSS v3.1 base score of 5.9 (AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N).
An unauthenticated remote attacker can exploit this vulnerability over the network, though it requires high attack complexity and user interaction. Successful exploitation enables limited confidentiality impact alongside high integrity impact, potentially allowing manipulation of request handling due to the misparsed Content-Type headers.
The Qwik security advisory (GHSA-vm6g-8r4h-22x8) and associated patch commit (d70d7099b90b998f1aac7cedc21c67d87bac4c75) confirm that the issue has been addressed in version 1.12.0, recommending an immediate upgrade to mitigate the flaw.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-5168
Vulnerability details
Qwik is a performance focused javascript framework. Prior to version 1.12.0, a typo in the regular expression within isContentType causes incorrect parsing of certain Content-Type headers. This issue has been patched in version 1.12.0.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CSRF due to Content-Type parsing flaw in public web framework enables remote exploitation of apps (T1190) via malicious link requiring user interaction (T1204.001).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation of Content-Type headers to prevent the regex typo from causing incorrect request parsing that enables the CWE-352 bypass.
Enforces information flow decisions based on properly parsed Content-Type attributes, blocking the header misinterpretation that leads to unauthorized request handling.
Mandates timely application of the vendor patch (v1.12.0) that corrects the isContentType regex flaw before exploitation.