CVE-2026-56762

Hono before 4.12.12 does not validate cookie names on the write path in the setCookie, serialize, and serializeSigned functions, allowing invalid characters such as control characters e.g. \r or \n when an application passes a user-controlled cookie name. This can produce malformed Set-Cookie...

EUVD-2026-38443

Hono before 4.12.12 does not validate cookie names on the write path in the setCookie, serialize, and serializeSigned functions, allowing invalid characters such as control characters e.g. \r or \n when an application passes a user-controlled cookie name. This can produce malformed Set-Cookie...

CVE-2026-54287 Hono: AWS Lambda adapter merges multiple `Set-Cookie` headers into one value, dropping cookies on ALB single-header and Lattice

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda, the ALB single-header response and the VPC Lattice v2 response join multiple Set-Cookie headers into one comma-separated value. Because commas also appear inside cookie attribute...

EUVD-2026-37758

undici vulnerable to Set-Cookie SameSite attribute downgrade via permissive substring matching...

GHSA-P88M-4JFJ-68FV undici vulnerable to HTTP header injection via Set-Cookie percent-decoding

Impact undici's cookie parser in parseSetCookie percent-decodes cookie values via qsUnescape, turning encoded sequences like %0D%0A, %00, %3B, and %3D into their literal byte equivalents. RFC 6265 §5.4 does not specify any decoding and browsers do not decode either. Applications that parse a...

undici vulnerable to HTTP header injection via Set-Cookie percent-decoding

Impact undici's cookie parser in parseSetCookie percent-decodes cookie values via qsUnescape, turning encoded sequences like %0D%0A, %00, %3B, and %3D into their literal byte equivalents. RFC 6265 §5.4 does not specify any decoding and browsers do not decode either. Applications that parse a...

UBUNTU-CVE-2026-11525

Impact: When undici parses a Set-Cookie header, it accepts any SameSit...

CVE-2026-11525

Impact: When undici parses a Set-Cookie header, it accepts any SameSite attribute value that contains Strict, Lax, or None as a substring, rather than the case-insensitive exact match specified by RFC 6265. Non-spec values are silently mapped to one of the three standard tokens. For example,...

EUVD-2026-32925

Hono: Cookie helper does not sanitize sameSite and priority, allowing Set-Cookie injection...

GHSA-3HRH-PFW6-9M5X Hono: Cookie helper does not sanitize sameSite and priority, allowing Set-Cookie injection

Summary The serialize function in hono/cookie validates domain and path options against characters that corrupt Set-Cookie header syntax ;, \r, \n, but does not apply the same validation to sameSite and priority. An application that passes user-controlled input into either option may produce a...

CVE-2026-47675 Hono: Cookie helper does not sanitize sameSite and priority, allowing Set-Cookie injection

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the serialize function in hono/cookie validates domain and path options against characters that corrupt Set-Cookie header syntax ;, \r, \n, but does not apply the same validation to sameSite an...

Astra Linux – Vulnerability in Flask

Flask is a lightweight WSGI web application framework. When all of the following conditions are met, a response containing data intended for one client may be cached and subsequently sent by the proxy to other clients. If the proxy also caches Set-Cookie headers, it may send one client’s session...

Unity Linux 20.1070e Security Update: future (UTSA-2026-017344)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017344 advisory. An issue discovered in Python Charmers Future 0.18.2 and earlier allows remote attackers to cause a denial of service via crafted Set-Cookie header from malicious we...

Astra Linux – Vulnerability in python-future

A vulnerability discovered in Python Charmers Future 0.18.2 and earlier allows remote attackers to cause a denial of service by using a crafted Set-Cookie header from a malicious web server...

curl: Cookie attribute TAB injection regression in Set-Cookie parsing

Overview | | | |---|---| | Component | lib/cookie.c — parsecookieheader | | Type | Security regression incomplete input validation | | CWE | CWE-20 Improper Input Validation | | Severity | LOW CVSS 3.1 estimated 3.7, comparable to CVE-2022-35252 | | Affected | curl 8.18.0 through current HEAD | |...

CVE-2026-29086

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, the setCookie utility did not validate semicolons ;, carriage returns \r, or newline characters \n in the domain and path options when constructing the Set-Cookie header. Because cookie...

GHSA-5PQ2-9X2X-5P6W Hono Vulnerable to Cookie Attribute Injection via Unsanitized domain and path in setCookie()

Summary The setCookie utility did not validate semicolons ;, carriage returns \r, or newline characters \n in the domain and path options when constructing the Set-Cookie header. Because cookie attributes are delimited by semicolons, this could allow injection of additional cookie attributes if...

PT-2026-23077

Name of the Vulnerable Software and Affected Versions Hono versions prior to 4.12.4 Description The setCookie utility did not properly validate semicolons ;, carriage returns r, or newline characters in the domain and path options when creating the Set-Cookie header. Because cookie attributes are...

MiracleLinux 8 : thunderbird-115.8.0-1.el8_9.ML.1 (AXSA:2024-7565:07)

The remote MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2024-7565:07 advisory. Mozilla: Out-of-bounds memory read in networking channels CVE-2024-1546 Mozilla: Alert dialog could have been spoofed on another site CVE-2024-1547...

curl: Cookie Max-Age Integer Overflow Vulnerability

Summary: The cookie parsing code in lib/cookie.c contains an integer overflow vulnerability when processing the Max-Age attribute of HTTP cookies. The vulnerable code attempts to add the max-age value to the current timestamp without adequate overflow protection While the code includes an overflo...