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RedHat Linux
RedHat Linux
added 2026/07/06 3:7 p.m.10 views

undici: undici: Weakening of cookie SameSite policy due to incorrect parsing of Set-Cookie header

A flaw was found in undici. When undici processes Set-Cookie headers, it incorrectly interprets the SameSite attribute, accepting partial matches instead of exact ones. This allows a malicious server to downgrade a cookie's SameSite policy to a less secure setting, potentially leading to unintend...

3.7CVSS7AI score0.00248EPSS
Exploits0References6
RedHat Linux
RedHat Linux
added 2026/07/06 2:47 p.m.6 views

undici: undici: Weakening of cookie SameSite policy due to incorrect parsing of Set-Cookie header

A flaw was found in undici. When undici processes Set-Cookie headers, it incorrectly interprets the SameSite attribute, accepting partial matches instead of exact ones. This allows a malicious server to downgrade a cookie's SameSite policy to a less secure setting, potentially leading to unintend...

3.7CVSS7AI score0.00248EPSS
Exploits0References6
RedHat Linux
RedHat Linux
added 2026/07/06 5:32 a.m.6 views

undici: undici: Weakening of cookie SameSite policy due to incorrect parsing of Set-Cookie header

A flaw was found in undici. When undici processes Set-Cookie headers, it incorrectly interprets the SameSite attribute, accepting partial matches instead of exact ones. This allows a malicious server to downgrade a cookie's SameSite policy to a less secure setting, potentially leading to unintend...

3.7CVSS5.9AI score0.00248EPSS
Exploits0References6
RedHat Linux
RedHat Linux
added 2026/07/06 4:52 a.m.11 views

undici: undici: Weakening of cookie SameSite policy due to incorrect parsing of Set-Cookie header

A flaw was found in undici. When undici processes Set-Cookie headers, it incorrectly interprets the SameSite attribute, accepting partial matches instead of exact ones. This allows a malicious server to downgrade a cookie's SameSite policy to a less secure setting, potentially leading to unintend...

3.7CVSS7AI score0.00248EPSS
Exploits0References6
OSV
OSV
added 2026/07/06 12:0 a.m.7 views

ALSA-2026:35891 Important: nodejs:24 security, bug fix, and enhancement update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: ip-address: ip-address: Cross-site scripting via improper HTML escaping of untrusted input CVE-2026-42338 undici: undici: Denial of Service due to...

9.8CVSS6.5AI score0.02806EPSS
Exploits1References32
SUSE Linux
SUSE Linux
added 2026/06/30 9:6 a.m.5 views

Security update for nodejs22

This update for nodejs22 fixes the following issues: CVE-2026-48618: tls: normalize hostname for server identity checks bsc1268593. CVE-2026-48933: crypto: guard WebCrypto cipher output length bsc1268592. CVE-2026-48615: lib,test: redact proxy credentials in tunnel errors bsc1268598...

8.7CVSS6.1AI score0.02806EPSS
Exploits3References76
Microsoft CVE
Microsoft CVE
added 2026/06/27 8:6 a.m.5 views

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

...

3.7CVSS7AI score0.00248EPSS
Exploits0
OSV
OSV
added 2026/06/25 1:34 p.m.5 views

SUSE-SU-2026:2633-1 Security update for nodejs24

This update for nodejs24 fixes the following issues Update to 24.17.0: - CVE-2026-2581: undici: Undici: Denial of Service due to uncontrolled resource consumption bsc1268480. - CVE-2026-6733: undici: Undici: Response queue poisoning on reused keep-alive sockets can lead to incorrect response...

9.8CVSS6AI score0.02806EPSS
Exploits3References43
NVD
NVD
added 2026/06/23 1:16 p.m.18 views

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...

6.9CVSS0.00247EPSS
Exploits0References2
EUVD
EUVD
added 2026/06/23 12:13 p.m.14 views

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...

6.9CVSS5.9AI score0.00247EPSS
Exploits0References2
Positive Technologies
Positive Technologies
added 2026/06/23 12:0 a.m.14 views

PT-2026-51516

Name of the Vulnerable Software and Affected Versions Hono versions prior to 4.12.12 Description The software fails to validate cookie names within the setCookie, serialize, and serializeSigned functions. When an application uses a user-controlled cookie name, invalid characters such as control...

6.9CVSS5.8AI score0.00247EPSS
Exploits0References7
NVD
NVD
added 2026/06/22 6:16 p.m.14 views

CVE-2026-54287

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...

5.3CVSS0.00186EPSS
Exploits0References1
Cvelist
Cvelist
added 2026/06/22 5:13 p.m.35 views

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...

5.3CVSS0.00186EPSS
Exploits0References1
ATTACKERKB
ATTACKERKB
added 2026/06/22 5:13 p.m.5 views

CVE-2026-54287

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...

5.3CVSS5.9AI score0.00186EPSS
Exploits0References2Affected Software1
CVE
CVE
added 2026/06/22 5:13 p.m.33 views

CVE-2026-54287

Summary: Hono’s AWS Lambda adapter, in the ALB single-header mode and VPC Lattice v2, concatenates multiple Set-Cookie headers into a single comma-separated value, causing cookie attributes that include commas (e.g., Expires) to be misparsed or dropped. Affected components: Hono web framework; AW...

5.3CVSS5.9AI score0.00186EPSS
Exploits0References1
OSV
OSV
added 2026/06/22 5:13 p.m.5 views

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...

5.3CVSS6AI score0.00186EPSS
Exploits0References3
Tenable Nessus
Tenable Nessus
added 2026/06/20 12:0 a.m.6 views

Linux Distros Unpatched Vulnerability : CVE-2026-11525

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

3.7CVSS7AI score0.00248EPSS
Exploits0References4
Github Security Blog
Github Security Blog
added 2026/06/19 2:34 p.m.14 views

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

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: -...

3.7CVSS5.9AI score0.00248EPSS
Exploits0References4Affected Software1
EUVD
EUVD
added 2026/06/19 2:34 p.m.14 views

EUVD-2026-37758

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

3.7CVSS5.8AI score0.00248EPSS
Exploits0References3
Patchstack
Patchstack
added 2026/06/19 2:34 p.m.7 views

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

NPM: undici vulnerable to Set-Cookie SameSite attribute downgrade via permissive substring matching vulnerability discovered by ? in WordPress Npm undici versions 6.27.0...

3.7CVSS5.8AI score0.00248EPSS
Exploits0References4Affected Software1
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