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ALSA-2026:22112 — Important: go-toolset:rhel8 security update

2026-10-02T11:04:48.454147+00:00

Affected: AlmaLinux:8: delve, AlmaLinux:8: go-toolset, AlmaLinux:8: golang, AlmaLinux:8: golang-bin, AlmaLinux:8: golang-docs, AlmaLinux:8: golang-misc, AlmaLinux:8: golang-race, AlmaLinux:8: golang-src, AlmaLinux:8: golang-tests

Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang.

Security Fix(es):

* net/mail: golang: net/mail: Denial of Service via pathological email address parsing (CVE-2026-42499) * cmd/go: golang: Go command (cmd/go): Integrity bypass due to checksum validation flaw via malicious module proxy (CVE-2026-42501) * html/template: golang: Go html/template: Cross-Site Scripting via improper URL escaping in meta tag content (CVE-2026-39823) * cmd/go: golang: Go 'go bug' command: Arbitrary file overwrite via symlink attack (CVE-2026-39819) * net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame (CVE-2026-33814) * net/mail: golang: Go net/mail: Denial of Service via crafted email inputs (CVE-2026-39820) * net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811) * net/http/httputil: golang: net/http/httputil: ReverseProxy forwards hidden query parameters, potentially bypassing security controls (CVE-2026-39825) * cmd/go: golang: Go tool pack: Arbitrary file write via malicious archive extraction (CVE-2026-39817) * html/template: golang: html/template: Cross-site scripting due to incorrect script tag escaping (CVE-2026-39826) * net: golang: Go net package: Denial of Service via NUL byte in Dial and LookupPort on Windows (CVE-2026-39836)

For more details about the security issue(s), including t…

bdu:2026-08060

2026-10-02T11:04:48.454325+00:00

bdu:2026-08060

BELL-CVE-2026-39825

2026-10-02T11:04:48.454347+00:00

Affected: Alpaquita:23: go, Alpaquita:25: go, Alpaquita:stream: go, BellSoft Hardened Containers:23: go, BellSoft Hardened Containers:25: go, BellSoft Hardened Containers:stream: go

BIT-golang-2026-39825 — ReverseProxy forwards queries with more than urlmaxqueryparams parameters in net/http/httputil

2026-10-02T11:04:48.454375+00:00

Affected: Bitnami: golang

ReverseProxy can forward queries containing parameters not visible to Rewrite functions. When used with a Rewrite function, or a Director function which parses query parameters, ReverseProxy sanitizes the forwarded request to remove query parameters which are not parsed by url.ParseQuery. ReverseProxy does not take ParseQuery's limit on the total number of query parameters (controlled by GODEBUG=urlmaxqueryparams=N) into account. This can permit ReverseProxy to forward a request containing a query parameter that is not visible to the Rewrite function. For example, the query "a1=x&a2=x&...&a10000=x&hidden=y" can forward the parameter "hidden=y" while hiding it from the proxy's Rewrite function.

Withdrawn: CLEANSTART-2026-AB44357 — Security fixes in opentofu-fips 1.9.4-r6

2026-10-02T11:04:48.454401+00:00

Withdrawn by the publisher.

Affected: CleanStart: opentofu-fips

Package opentofu-fips version 1.9.4-r6 fixes 13 vulnerabilities: CVE-2026-39820, CVE-2026-42499, CVE-2026-33814, CVE-2026-33811, CVE-2026-39836...

EUVD-2026-309269

2026-10-02T11:04:48.454422+00:00

EUVD-2026-309269

fkie_cve-2026-39825

2026-10-02T11:04:48.454433+00:00

GHSA-h74g-238j-357m

2026-10-02T11:04:48.454459+00:00

msrc_CVE-2026-39825 — ReverseProxy forwards queries with more than urlmaxqueryparams parameters in net/http/httputil

2026-10-02T11:04:48.454477+00:00

msrc_CVE-2026-39825

openSUSE-SU-2026:10723-1 — go1.25-1.25.10-1.1 on GA media

2026-10-02T11:04:48.454494+00:00

go1.25-1.25.10-1.1 on GA media

RHSA-2026:23262 — Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

2026-10-02T11:04:48.454516+00:00

crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame net/mail: golang: Go net/mail: Denial of Service via crafted email inputs golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing html/template: golang: Go html/template: Cross-Site Scripting via improper URL escaping in meta tag content net/http/httputil: golang: net/http/httputil: ReverseProxy forwards hidden query parameters, potentially bypassing security controls html/template: golang: html/template: Cross-site scripting due to incorrect script tag escaping net: golang: Go net package: Denial of Service via NUL byte in Dial and LookupPort on Windows cmd/go: golang: Go command (cmd/go): Integrity bypass due to checksum validation flaw via malicious module proxy mime: golang: Golang MIME: Denial of Service via maliciously-crafted MIME header net/textproto: golang: Golang net/textproto: Misleading error messages via input injection golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypto/ssh/knownhosts: Revocation bypass via unchecked SignatureKey golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Authorization bypass due to skipped source-address validation

RLSA-2026:22112 — Important: go-toolset:rhel8 security update

2026-10-02T11:04:48.454557+00:00

Affected: Rocky Linux:8: delve, Rocky Linux:8: golang

Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang.

Security Fix(es):

* net/mail: golang: net/mail: Denial of Service via pathological email address parsing (CVE-2026-42499)

* cmd/go: golang: Go command (cmd/go): Integrity bypass due to checksum validation flaw via malicious module proxy (CVE-2026-42501)

* html/template: golang: Go html/template: Cross-Site Scripting via improper URL escaping in meta tag content (CVE-2026-39823)

* cmd/go: golang: Go 'go bug' command: Arbitrary file overwrite via symlink attack (CVE-2026-39819)

* net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame (CVE-2026-33814)

* net/mail: golang: Go net/mail: Denial of Service via crafted email inputs (CVE-2026-39820)

* net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811)

* net/http/httputil: golang: net/http/httputil: ReverseProxy forwards hidden query parameters, potentially bypassing security controls (CVE-2026-39825)

* cmd/go: golang: Go tool pack: Arbitrary file write via malicious archive extraction (CVE-2026-39817)

* html/template: golang: html/template: Cross-site scripting due to incorrect script tag escaping (CVE-2026-39826)

* net: golang: Go net package: Denial of Service via NUL byte in Dial and LookupPort on Windows (CVE-2026-39836)

For more details about the security issue(s), including the impact, a CVSS…

SUSE-SU-2026:21804-1 — Security update for go1.26

2026-10-02T11:04:48.454600+00:00

Security update for go1.26

UBUNTU-CVE-2026-39825

2026-10-02T11:04:48.454621+00:00

Affected: Ubuntu:14.04:LTS: golang-1.10, Ubuntu:16.04:LTS: golang-1.10, Ubuntu:16.04:LTS: golang-1.6, Ubuntu:Pro:16.04:LTS: golang-1.13, Ubuntu:Pro:16.04:LTS: golang-1.18, Ubuntu:18.04:LTS: golang-1.10, Ubuntu:Pro:18.04:LTS: golang-1.13, Ubuntu:Pro:18.04:LTS: golang-1.16, Ubuntu:Pro:18.04:LTS: golang-1.18, Ubuntu:18.04:LTS: golang-1.8 and 26 more

WID-SEC-W-2026-1437 — Golang Go: Mehrere Schwachstellen

2026-10-02T11:04:48.454689+00:00

Ein Angreifer kann mehrere Schwachstellen in Golang Go ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.