CVE-2026-58187 Apache Traffic Server: Multiplexer plugin chunk decoder enables a denial of service

The Apache Traffic Server multiplexer plugin overruns its chunk-decode buffer on upstream input, enabling denial of service. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.1...

CVE-2026-58187

CVE-2026-58187 affects the Apache Traffic Server multiplexer plugin. The issue overruns the plugin’s chunk-decode buffer using upstream input, enabling a denial of service. Affected versions are 8.0.0–8.1.9, 9.0.0–9.2.14, and 10.0.0–10.1.3. Apache recommends upgrading to 9.2.15 or 10.1.4, which c...

EUVD-2026-50231

The Apache Traffic Server webptransform plugin can decode unsafely and serve mislabeled, cacheable responses. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4,...

EUVD-2026-50230

The Apache Traffic Server intercept plugin has a use-after-free. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue...

CVE-2026-58185 Apache Traffic Server: Use-after-free in the intercept plugin

The Apache Traffic Server intercept plugin has a use-after-free. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue...

CVE-2026-58182 Apache Traffic Server: ts_lua plugin has initialization and resource-handling errors

The Apache Traffic Server tslua plugin mishandles initialization, transform context, and per-instance state. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, whi...

CVE-2026-58179 Apache Traffic Server: regex_remap plugin overflows the stack from attacker input

The Apache Traffic Server regexremap plugin overflows the stack and integers from substitution input. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix...

CVE-2026-58178 Apache Traffic Server: ESI plugin allows uncontrolled recursion and server-side request forgery

The Apache Traffic Server ESI plugin can recurse without bound and fetch attacker-controlled URLs. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the...

CVE-2026-58177 Apache Traffic Server: Memory-safety and path-traversal errors in the Cripts framework

The Apache Traffic Server Cripts framework has out-of-bounds writes, path traversal, and use-after-free errors. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 10.1.4, which fix the issue...

EUVD-2026-50222

The Apache Traffic Server Cripts framework has out-of-bounds writes, path traversal, and use-after-free errors. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 10.1.4, which fix the issue...

CVE-2026-58163 Apache Traffic Server: Cache deserialization and lifetime errors can corrupt state or crash the server

Apache Traffic Server mishandles on-disk cache fields and object lifetimes, corrupting state or crashing. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which...

CVE-2026-58160 Apache Traffic Server: Out-of-bounds reads while parsing DNS responses

Apache Traffic Server reads out of bounds while parsing DNS answers. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue...

CVE-2026-58160

CVE-2026-58160 affects Apache Traffic Server. The issue is described as out-of-bounds reads when parsing DNS responses, impacting versions 8.0.0–8.1.9, 9.0.0–9.2.14, and 10.0.0–10.1.3. The documented remediation is to upgrade to 9.2.15 or 10.1.4, which fix the issue. No exploitation details or ad...

CVE-2026-58159 Apache Traffic Server: Listener and ACL handling allow access-control bypass

Apache Traffic Server can bypass IP access controls on UDS listeners and through ACL matching errors. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix...

CVE-2026-58158

Apache Traffic Server mishandles PROXY protocol input, truncating ports and overflowing the stack. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the...

CVE-2026-58158 Apache Traffic Server: PROXY protocol parsing has port truncation and a stack overflow

Apache Traffic Server mishandles PROXY protocol input, truncating ports and overflowing the stack. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the...

CVE-2026-58158

Apache Traffic Server mishandles PROXY protocol input, truncating ports and overflowing the stack. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the...

CVE-2026-58157 Apache Traffic Server: Improper server-session reuse can expose data across client connections

Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4,...

CVE-2026-58156

Apache Traffic Server contains a URL/userinfo port parsing flaw that allows port-based access-control bypass in versions 8.0.0–8.1.9, 9.0.0–9.2.14, and 10.0.0–10.1.3. The issue is triggered by mis-parsing ports in URLs and userinfo, enabling bypass of access controls. Upgraded fixes are available...

CVE-2026-58155

Apache Traffic Server truncates over-long header names, allowing header aliasing, request smuggling, and policy bypass. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or...