CVE-2026-61908
—CVSS 3.1
3.1 low
EPSS
<1%p11
Published
()
Modified
Description
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.
- Weakness
- CWE-125
- Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
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