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Vulnerabilities

Vulnerability · SUSE-SU-2026:4866-1

Security update for go1.26-openssl

Published Oct 22, 2026 · catalog updated Oct 23, 2026 · Security update for go1.26-openssl

Last checked Oct 23, 2026, 8 days ago.

Open the advisory

Exploitation likelihood is not on this record for SUSE-SU-2026:4866-1. A missing EPSS score is not a low risk. Compare Security update for go1.26-openssl with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Security update for go1.26-openssl).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
SUSE:Linux Enterprise Module for Develop go1.26-openssl · SUSE:Linux Enterprise Server 15 SP6-LTSS go1.26-openssl · SUSE:Linux Enterprise Server for SAP App go1.26-openssl

This update for go1.26-openssl fixes the following issues: 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: Mo

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • SUSE:Linux Enterprise Module for Develop go1.26-openssl0 → 1.26.10-150600.13.18.1
  • SUSE:Linux Enterprise Server 15 SP6-LTSS go1.26-openssl0 → 1.26.10-150600.13.18.1
  • SUSE:Linux Enterprise Server for SAP App go1.26-openssl0 → 1.26.10-150600.13.18.1

How to fix SUSE-SU-2026:4866-1

  • Upgrade

    SUSE-SU-2026:4866-1 lists a fix boundary at 1.26.10-150600.13.18.1. Compare the installed build with that boundary before you change production.

  • Version check

    Fixed in 1.26.10-150600.13.18.1 · 2 other ranges on the advisory

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for SUSE-SU-2026:4866-1. A missing EPSS score is not a low risk. Compare Security update for go1.26-openssl with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 0 → 1.26.10-150600.13.18.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

OpenSSL security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 22, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    This update for go1.26-openssl fixes the following issues: 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

  2. Oct 23, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    go1.26-openssl fixed in 1.26.10-150600.13.18.1; go1.26-openssl fixed in 1.26.10-150600.13.18.1; go1.26-openssl fixed in 1.26.10-150600.13.18.1

  3. Oct 23, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    go1.26-openssl fixed in 1.26.10-150600.13.18.1

  4. Oct 23, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    This update for go1.26-openssl fixes the following issues: 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

Sources

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • OpenSSF OSV / OSV ScannerOct 23, 2026