Ghost: Private IP Filtering Bypass via IPv6 Transition Addresses

Impact A validation issue allowed some functionality, such as Webmentions, to be abused by an unauthenticated user to make limited HTTP requests to hosts in the Ghost server's internal network on some network configurations. A successful attack would not result in any response data being returned...

GHSA-R7F2-6FJ8-6FG2 Ghost: Private IP Filtering Bypass via IPv6 Transition Addresses

Impact A validation issue allowed some functionality, such as Webmentions, to be abused by an unauthenticated user to make limited HTTP requests to hosts in the Ghost server's internal network on some network configurations. A successful attack would not result in any response data being returned...

NPM: Ghost: Private IP Filtering Bypass via IPv6 Transition Addresses

NPM: Ghost: Private IP Filtering Bypass via IPv6 Transition Addresses vulnerability discovered by ? in WordPress Npm ghost versions = 6.0.9, 6.65.0...

CVE-2026-105689

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, app.util.ssrf/blocked-address? relies on Java InetAddress predicates that do not classify NAT64, 6to4, or Teredo addresses and applies additional CIDR checks only to IPv4 values. Exploitation requires routing through a NAT...

EUVD-2026-92707

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, app.util.ssrf/blocked-address? relies on Java InetAddress predicates that do not classify NAT64, 6to4, or Teredo addresses and applies additional CIDR checks only to IPv4 values. Exploitation requires routing through a NAT...

CVE-2026-105648 Ghost: Private IP Filtering Bypass via IPv6 Transition Addresses

Ghost is a Node.js content management system. From 6.0.9 until 6.65.0, a validation issue allowed some functionality, such as Webmentions, to be abused by an unauthenticated user to make limited HTTP requests to hosts in the Ghost server's internal network on some network configurations. A...

CVE-2026-105689: Server-Side Request Forgery (SSRF)

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, app.util.ssrf/blocked-address? relies on Java InetAddress predicates that do not classify NAT64, 6to4, or Teredo addresses and applies additional CIDR checks only to IPv4 values. Exploitation requires routing through a NAT...

CVE-2026-104458 YesWiki before 4.6.7 SSRF Guard Bypass via IPv6 Transition Addresses

YesWiki before 4.6.7 contains a server-side request forgery vulnerability in validateKeyIdUrl that allows unauthenticated attackers to bypass the SSRF guard using 6to4, NAT64, or IPv4-compatible IPv6 addresses. Attackers can send a crafted Signature keyId to the public actor inbox route to reach...

GO-2026-6572 Cloudreve: SSRF guard bypass: checkIP does not decode IPv6-transition wrappers (NAT64, IPv4-compatible, 6to4) reaching internal and cloud-metadata addresses in github.com/cloudreve/Cloudreve

Cloudreve: SSRF guard bypass: checkIP does not decode IPv6-transition wrappers NAT64, IPv4-compatible, 6to4 reaching internal and cloud-metadata addresses in github.com/cloudreve/Cloudreve...

PYSEC-2026-4064 lightrag-hku: SSRF via IPv6-transition address bypass (NAT64, IPv4-compatible, 6to4) of the native-markdown image-download guard

Summary LightRAG's native markdown parser downloads external images referenced by an uploaded markdown or textpack document. The only SSRF guard, validatedaddresses in lightrag/parser/markdown/parser.py, resolves the image host and rejects it when the resolved IP is not isglobal. That check is...

lightrag-hku: SSRF via IPv6-transition address bypass (NAT64, IPv4-compatible, 6to4) of the native-markdown image-download guard

SummaryLightRAG's native markdown parser downloads external images referenced by an uploaded markdown or textpack document. The only SSRF guard, validatedaddresses in lightrag/parser/markdown/parser.py, resolves the image host and rejects it when the resolved IP is not isglobal. That check is...

PT-2026-105591

Cloudreve: SSRF guard bypass: checkIP does not decode IPv6-transition wrappers NAT64, IPv4-compatible, 6to4 reaching internal and cloud-metadata addresses in github.com/cloudreve/Cloudreve...

CVE-2026-102879

ClaraVerse through 0.3.1 contains server-side request forgery protection bypasses in the downloadfile and scrapeweb agent tools. Authenticated users can bypass hostname validation and IPv6 transition address filtering to make the server request internal services and cloud instance metadata...

EUVD-2026-89414

ClaraVerse through 0.3.1 contains server-side request forgery protection bypasses in the downloadfile and scrapeweb agent tools. Authenticated users can bypass hostname validation and IPv6 transition address filtering to make the server request internal services and cloud instance metadata...

CVE-2026-102879 ClaraVerse through 0.3.1 SSRF Protection Bypass

ClaraVerse through 0.3.1 contains server-side request forgery protection bypasses in the downloadfile and scrapeweb agent tools. Authenticated users can bypass hostname validation and IPv6 transition address filtering to make the server request internal services and cloud instance metadata...

CVE-2026-102879 ClaraVerse through 0.3.1 SSRF Protection Bypass

ClaraVerse through 0.3.1 contains server-side request forgery protection bypasses in the downloadfile and scrapeweb agent tools. Authenticated users can bypass hostname validation and IPv6 transition address filtering to make the server request internal services and cloud instance metadata...

PT-2026-102895

ClaraVerse through 0.3.1 contains server-side request forgery protection bypasses in the download file and scrape web agent tools. Authenticated users can bypass hostname validation and IPv6 transition address filtering to make the server request internal services and cloud instance metadata...

CVE-2026-101087

Nezha versions 2.0.10 through 2.3.2 use a restricted HTTP client to validate user-configurable notification and DDNS webhook URLs, but the denylist did not cover IPv6 transition ranges — specifically the 6to4 prefix 2002::/16 and the local-use IPv4/IPv6 translation prefix 64:ff9b:1::/48. Because...

EUVD-2026-88022

Nezha versions 2.0.10 through 2.3.2 use a restricted HTTP client to validate user-configurable notification and DDNS webhook URLs, but the denylist did not cover IPv6 transition ranges — specifically the 6to4 prefix 2002::/16 and the local-use IPv4/IPv6 translation prefix 64:ff9b:1::/48. Because...

CVE-2026-101087 Nezha 2.0.10 through 2.3.2 SSRF Denylist Bypass IPv6

Nezha versions 2.0.10 through 2.3.2 use a restricted HTTP client to validate user-configurable notification and DDNS webhook URLs, but the denylist did not cover IPv6 transition ranges — specifically the 6to4 prefix 2002::/16 and the local-use IPv4/IPv6 translation prefix 64:ff9b:1::/48. Because...