CVE-2026-40203

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

CVE-2026-40203

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

CVE-2026-40203

CVE-2026-40203 affects Open-Xchange Dovecot when IMAP compression is enabled. The root cause is that the same compression state is reused across responses in a session, causing response sizes to depend on both attacker-supplied mail and other mail in the same mailbox. An attacker who can send mai...

CVE-2026-40203

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

zupt

Project archived. For newest versions and updates check it out. Compress everything. Trust nothing. Encrypt always...

PT-2026-83062

Name of the Vulnerable Software and Affected Versions dovecot versions prior to 2.4.5-1.1 Description When IMAP compression is enabled, the compression state is reused across responses in a session. This causes response sizes to depend on both attacker-supplied mail and other mail within the same...

CVE-2026-40203

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

CVE-2026-52687

An attacker that has valid credentials can select a compression algorithm for the IMAP connection whose decompression state requires a large amount of memory, and open several such connections. The memory limit of the process is reached with only a few connections, terminating the process and all...

UBUNTU-CVE-2026-40203

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

PT-2026-83146

Unauthenticated Denial of Service Attack in Smush Image Compression and Optimization = 4.2.0 versions...

Linux Distros Unpatched Vulnerability : CVE-2026-59984

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.1.0 through...

Python Library OpenEXR 3.4.0 < 3.4.14 DoS (CVE-2026-68516)

The version of the OpenEXR Python package installed on the remote host is 3.4.x prior to 3.4.14. It is, therefore, affected by a denial of service vulnerability: - A crafted HTJ2K-compressed EXR whose JPEG 2000 SIZ fields place the first tile outside the visible image can reach invalid tile and...

CVE-2026-40203: Exposure of Sensitive Information to an Unauthorized Actor

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

CVE-2026-81285: Allocation of Resources Without Limits or Throttling

Unauthenticated Denial of Service Attack in Smush Image Compression and Optimization = 4.2.0 versions...

UBUNTU-CVE-2026-52687

An attacker that has valid credentials can select a compression algorithm for the IMAP connection whose decompression state requires a large amount of memory, and open several such connections. The memory limit of the process is reached with only a few connections, terminating the process and all...

CVE-2026-52687: Uncontrolled Resource Consumption

An attacker that has valid credentials can select a compression algorithm for the IMAP connection whose decompression state requires a large amount of memory, and open several such connections. The memory limit of the process is reached with only a few connections, terminating the process and all...

CVE-2026-80213

An issue was discovered in the resolv gem before 0.7.2 for Ruby. Resolv::DNS::MessageEncoder wrote a DNS label's length into a single octet without checking its range. A label longer than 255 octets had its length stored modulo 256 but the label data was written unchanged, and thus the bytes on t...

AZL-98229 CVE-2026-80213 affecting package ruby for versions less than 3.3.5-9

An issue was discovered in the resolv gem before 0.7.2 for Ruby. Resolv::DNS::MessageEncoder wrote a DNS label's length into a single octet without checking its range. A label longer than 255 octets had its length stored modulo 256 but the label data was written unchanged, and thus the bytes on t...

CVE-2026-80213

An issue was discovered in the resolv gem before 0.7.2 for Ruby. Resolv::DNS::MessageEncoder wrote a DNS label's length into a single octet without checking its range. A label longer than 255 octets had its length stored modulo 256 but the label data was written unchanged, and thus the bytes on t...

CVE-2026-80213

CVE-2026-80213 affects the resolv gem (before 0.7.2 ) for Ruby. The vulnerability resides in Resolv::DNS::MessageEncoder , which wrote a DNS label's length into a single octet without range validation. Labels longer than 255 octets had their length stored modulo 256 while the label data was writt...