LOWCVSS 3.1
CVE-2026-61908
CVE-2026-61908 updated by NVD
Summary
An issue was discovered in Cyrus IMAP before 3.12.4. A JMAP email-header blob ID can reference an out-of-bounds index. An authenticated user could attempt to download a crafted JMAP blob ID of the form H - , which could read past the end of the internal blob_headers array during download, exposing adjacent heap memory.
References
Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.
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