Security Bulletin:Catastrophic Backtracking Vulnerability in path-to-regexp with Three or More Parameters

Summary Impact: A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period .. For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in [email protected] only prevents ambiguity for two...

CVE-2026-67438 OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check

OliveTin gives access to predefined shell commands from a web interface. From 3000.2.0 until 3000.17.0, the service/internal/executor/arguments.go checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions, allowing values that pass...

CVE-2026-67438

OliveTin versions 3000.2.0 through 3000.17.0 expose a vulnerability where the checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions. This allows values that pass typeSafetyCheckRegex to be interpolated by wrapCommandInShell into an sh -c co...

CVE-2026-67438 OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check

OliveTin gives access to predefined shell commands from a web interface. From 3000.2.0 until 3000.17.0, the service/internal/executor/arguments.go checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions, allowing values that pass...

PT-2026-65910

Name of the Vulnerable Software and Affected Versions OliveTin versions 3000.2.0 through 3000.16.0 Description OS command injection is possible because the checkShellArgumentSafety function in service/internal/executor/arguments.go fails to treat regex: custom argument types as unsafe for Shell...

path-to-regexp vulnerable to Regular Expression Denial of Service via multiple route parameters

Impact A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period .. For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in [email protected] only prevents ambiguity for two parameter...

EUVD-2026-16273

path-to-regexp vulnerable to Regular Expression Denial of Service via multiple route parameters...

UBUNTU-CVE-2026-4867

Impact: A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period .. For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in [email protected] only prevents ambiguity for two...

CVE-2026-4867 path-to-regexp vulnerable to Regular Expression Denial of Service via multiple route parameters

Impact: A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period .. For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in [email protected] only prevents ambiguity for two...

CVE-2026-4867 path-to-regexp vulnerable to Regular Expression Denial of Service via multiple route parameters

Impact: A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period .. For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in [email protected] only prevents ambiguity for two...

CVE-2026-4867

Impact: A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period .. For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in [email protected] only prevents ambiguity for two...

Linux Distros Unpatched Vulnerability : CVE-2026-4867

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Impact: A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period...

PT-2026-28656

Name of the Vulnerable Software and Affected Versions path-to-regexp versions prior to 0.1.13 Description A flawed regular expression is generated when three or more parameters are present within a single segment, separated by characters other than a period .. For example, /:a-:b-:c or...

path-to-regexp outputs backtracking regular expressions

Impact A bad regular expression is generated any time you have two parameters within a single segment, separated by something that is not a period .. For example, /:a-:b. Patches For users of 0.1, upgrade to 0.1.10. All other users should upgrade to 8.0.0. These versions add backtrack protection...