SUSE SLED15 / SLES15 Security Update : go1.26-openssl (SUSE-SU-2026:4866-1)

critical Nessus Plugin ID 371079

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4866-1 advisory.

Update to version 1.26.10 (bsc#1255111, jsc#SLE-18320):

- CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on Windows (bsc#1284766).
- CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after CONNECT rejection (bsc#1284767).
- CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer headers (bsc#1284768).
- CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related headers (bsc#1284769).
- CVE-2026-78663: net/http: double flow control refund on HTTP/2 server streams (bsc#1284770).
- CVE-2026-78667: net/http: lack of limit on size of parsed Range headers (bsc#1284771).
- CVE-2026-78669: net/http: excessive CPU consumption from repeated initial window changes (bsc#1284772).
- CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response (bsc#1284773).
- CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when parsing MIME headers (bsc#1284774).
- CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140 (bsc#1284775).
- CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain (bsc#1284776).
- CVE-2026-94448: html/template: reset context tracking on consecutive template expressions (bsc#1284777).
- CVE-2026-97030: html/template: recognize yield as regexp preceder keyword (bsc#1284778).
- CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references (bsc#1284779).
- CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race (bsc#1284780).
- CVE-2026-111943: crypto/x509: mitigation for security concerns with a specific Certificate Authority (bsc#1286317, bsc#1286261).

Changes:

* go#81144 runtime: mutex profiling can deadlock Windows asynchronous preemption during GC
* go#81225 runtime: netpoll: eventfd ready for something unexpected
* go#81251 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
* go#81295 cmd/compile: internal compiler error: MoveLoop too small
* go#81318 os,internal/poll: NewFile on an inherited overlapped stdout pipe hangs a sibling's WriteFile (Windows)
* go#81401 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build 10240
* go#81436 runtime: intermittent SIGBUS (unaligned access) in netpoll on mips64le (Go 1.27)
* go#81668 cmd/compile: go1.27 miscompiles &slice[i].Field on an append-built slice; returned pointer aliases reused memory
* go#81689 cmd/compile: slice allocation reuses stack backing store incorrectly
* go#81860 cmd/go: vet reports no diagnostics for a package that an earlier run vetted as a dependency
* go#81889 cmd/link: plugin.Open fails on macOS 27: LC_DYLD_CHAINED_FIXUPS seg_count not updated after combining DWARF
* go#81152 cmd/compile/internal/test: TestMergeLocalsIntegration failures
* go#81113 debug/elf: applyRelocationsPPC was broken by CL 705075
* go#80889 os: TestRootMultiMkdirAllShallow failures on openbsd
* go#80851 cmd/go: pseudo #cgo directive FFLAGS value mixed up with CXXFLAGS in Go 1.26
* go#80827 runtime: async preemption corrupts AVX (YMM) state on netbsd/amd64

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected go1.26-openssl, go1.26-openssl-doc and / or go1.26-openssl-race packages.

Plugin Details

Severity: Critical

ID: 371079

File Name: suse_SU-2026-4866-1.nasl

Version: 1.2

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 10/23/2026

Updated: 10/23/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.1

Percentile: 98.15

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-56857

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:go1.26-openssl-doc, p-cpe:/a:novell:suse_linux:go1.26-openssl-race, p-cpe:/a:novell:suse_linux:go1.26-openssl

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/22/2026

Vulnerability Publication Date: 10/8/2026

Reference Information

CVE: CVE-2026-111943, CVE-2026-56857, CVE-2026-56866, CVE-2026-78659, CVE-2026-78660, CVE-2026-78663, CVE-2026-78667, CVE-2026-78669, CVE-2026-94439, CVE-2026-94440, CVE-2026-94444, CVE-2026-94447, CVE-2026-94448, CVE-2026-97030, CVE-2026-97031, CVE-2026-97032

IAVB: 2026-B-0304

SuSE: SUSE-SU-2026:4866-1

Detections

Analytics