GHSA-CRP9-R7RQ-C8CG Duplicate Advisory: pathsec SSRF protection can be bypassed when a proxy is configured

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-6ww7-3frv-cqxh. This link is maintained to preserve external references. Original Description NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers...

PYSEC-2026-3733

NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers nltk.data.load, nltk.downloader.Downloader.index/download when an HTTP proxy is configured. pathsec.urlopen validates the requested hostname locally, but proxy-handler inheritance disables...

DEBIAN-CVE-2026-78682

NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers nltk.data.load, nltk.downloader.Downloader.index/download when an HTTP proxy is configured. pathsec.urlopen validates the requested hostname locally, but proxy-handler inheritance disables...

PYSEC-2026-3733

NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers nltk.data.load, nltk.downloader.Downloader.index/download when an HTTP proxy is configured. pathsec.urlopen validates the requested hostname locally, but proxy-handler inheritance disables...

CVE-2026-78682

NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers nltk.data.load, nltk.downloader.Downloader.index/download when an HTTP proxy is configured. pathsec.urlopen validates the requested hostname locally, but proxy-handler inheritance disables...

DEBIAN-CVE-2026-34959

Adminer 4.6.0 before 5.5.0 prepends the client-supplied X-Forwarded-Prefix header to $SERVER"REQUESTURI" with no trusted-proxy check and no validation of the prefix value. An attacker can supply an absolute URL e.g. X-Forwarded-Prefix: https://evil.example that flows into Location redirect header...

CVE-2026-16434

Adminer 4.6.0 through 5.5.0 fixed in 5.5.1 contains an incomplete fix for a prior X-Forwarded-Prefix vulnerability GHSA-8478-xrj3-h9c2. The validation guard bootstrap.inc.php only rejects prefixes matching ^/^/, blocking //evil.com but allowing values such as /\evil.com whose second character is ...

CVE-2026-34959

Adminer 4.6.0 before 5.5.0 prepends the client-supplied X-Forwarded-Prefix header to $SERVER"REQUESTURI" with no trusted-proxy check and no validation of the prefix value. An attacker can supply an absolute URL e.g. X-Forwarded-Prefix: https://evil.example that flows into Location redirect header...

CVE-2026-78682 NLTK before 3.10.3 SSRF Protection Bypass via Proxy

NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers nltk.data.load, nltk.downloader.Downloader.index/download when an HTTP proxy is configured. pathsec.urlopen validates the requested hostname locally, but proxy-handler inheritance disables...

CVE-2026-78682

NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers nltk.data.load, nltk.downloader.Downloader.index/download when an HTTP proxy is configured. pathsec.urlopen validates the requested hostname locally, but proxy-handler inheritance disables...

CVE-2026-78682

NLTK before 3.10.3 is affected by a server-side request forgery (SSRF) vulnerability in nltk.pathsec.urlopen and its callers (nltk.data.load, nltk.downloader.Downloader.index/download). The root cause is that when an HTTP proxy is configured, proxy-handler inheritance disables the safe HTTP/HTTPS...

CVE-2026-78682

NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers nltk.data.load, nltk.downloader.Downloader.index/download when an HTTP proxy is configured. pathsec.urlopen validates the requested hostname locally, but proxy-handler inheritance disables...

CVE-2026-78682 NLTK before 3.10.3 SSRF Protection Bypass via Proxy

NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers nltk.data.load, nltk.downloader.Downloader.index/download when an HTTP proxy is configured. pathsec.urlopen validates the requested hostname locally, but proxy-handler inheritance disables...

CVE-2026-78682 NLTK before 3.10.3 SSRF Protection Bypass via Proxy

NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen and callers nltk.data.load, nltk.downloader.Downloader.index/download when an HTTP proxy is configured. pathsec.urlopen validates the requested hostname locally, but proxy-handler inheritance disables...

CVE-2026-16434 Adminer before 5.5.1 X-Forwarded-Prefix Backslash Bypass

Adminer 4.6.0 through 5.5.0 fixed in 5.5.1 contains an incomplete fix for a prior X-Forwarded-Prefix vulnerability GHSA-8478-xrj3-h9c2. The validation guard bootstrap.inc.php only rejects prefixes matching ^/^/, blocking //evil.com but allowing values such as /\evil.com whose second character is ...

CVE-2026-16434 Adminer before 5.5.1 X-Forwarded-Prefix Backslash Bypass

Adminer 4.6.0 through 5.5.0 fixed in 5.5.1 contains an incomplete fix for a prior X-Forwarded-Prefix vulnerability GHSA-8478-xrj3-h9c2. The validation guard bootstrap.inc.php only rejects prefixes matching ^/^/, blocking //evil.com but allowing values such as /\evil.com whose second character is ...

CVE-2026-16434

Adminer versions 4.6.0 through 5.5.0 contain an incomplete fix for a prior X-Forwarded-Prefix header injection (GHSA-8478-xrj3-h9c2). The validation guard in bootstrap.inc.php uses the regex ^/[^/] to reject malicious prefixes, which blocks //evil.com but allows values like /\evil.com where the s...

EUVD-2026-65195

Adminer 4.6.0 through 5.5.0 fixed in 5.5.1 contains an incomplete fix for a prior X-Forwarded-Prefix vulnerability GHSA-8478-xrj3-h9c2. The validation guard bootstrap.inc.php only rejects prefixes matching ^/^/, blocking //evil.com but allowing values such as /\evil.com whose second character is ...

CVE-2026-78886: Improper Limitation of a Pathname to a Restricted Directory

A security flaw has been discovered in liketrek TREK up to 3.0.22. This affects an unknown function of the file server/src/nest/journey/journey-public.controller.ts of the component Public Journey Photo Proxy. Performing a manipulation results in path traversal. The attack can be initiated...

CVE-2026-79787: Improper Authentication

Alluxio's S3 REST proxy fails to verify AWS Signature Version 4 signatures in its default configuration, allowing unauthenticated attackers to spoof user identity. Attackers can extract usernames from unsigned Authorization headers and impersonate any user, including service accounts, to read,...