EUVD-2026-77370

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 fail to limit size of unpacked SDP messages compressed with zlib, which allows attacker to deny service or crash server via sending many SDP messages that unpack to large size.. Mattermost Advisory ID:...

AlmaLinux 10 : ruby (ALSA-2026:50778)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:50778 advisory. zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command injection via CRLF...

PT-2026-91148

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 fail to limit size of unpacked SDP messages compressed with zlib, which allows attacker to deny service or crash server via sending many SDP messages that unpack to large size.. Mattermost Advisory ID:...

AlmaLinux 8 : ruby:3.3 (ALSA-2026:50728)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:50728 advisory. zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command injection via CRLF...

CVE-2026-5132: Improper Handling of Highly Compressed Data (Data Amplification)

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 fail to limit size of unpacked SDP messages compressed with zlib, which allows attacker to deny service or crash server via sending many SDP messages that unpack to large size.. Mattermost Advisory ID:...

AlmaLinux 10 : ruby4.0 (ALSA-2026:50773)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:50773 advisory. zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command injection via CRLF...

CVE-2026-89716

In the Linux kernel, the following vulnerability has been resolved: zram: validate deflate params We must validate user-supplied deflate winbits before we pass it to zlibdeflateworkspacesize, which triggers BUGON if winbits value is outside of valid ranges...

Missing Release of Memory after Effective Lifetime

Overview Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime via improper cleanup of the zlib compression stream when a client disconnects before the response finishes. The onResponseClose handler was absent, leaving native zlib handles unrelease...

Missing Release of Memory after Effective Lifetime

Overview Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime via improper cleanup of the zlib compression stream when a client disconnects before the response finishes. The onResponseClose handler was absent, leaving native zlib handles unrelease...

CVE-2026-87776

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

AZL-101778 CVE-2026-87776 affecting package python-tensorboard 2.16.2-6

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

DEBIAN-CVE-2026-87776

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

CVE-2026-87776

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

UBUNTU-CVE-2026-87776

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

CVE-2026-87776

A flaw was found in the compression Node.js and Express middleware. A remote unauthenticated attacker can exploit this vulnerability by repeatedly initiating and then prematurely aborting connections while compressed responses are being sent. This action prevents the zlib stream, used for...

CVE-2026-87776 compression vulnerable to Denial of Service via memory leak on premature response close

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

CVE-2026-87776 compression vulnerable to Denial of Service via memory leak on premature response close

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

EUVD-2026-76072

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

CVE-2026-87776 compression vulnerable to Denial of Service via memory leak on premature response close

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

CVE-2026-87776

compression is a Node.js and Express compression middleware. In versions before 1.8.2 , when a client aborts a connection while a compressed response is still being sent, the associated zlib stream is never destroyed, causing native zlib memory to leak with each aborted response. A remote unauthe...