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Go 1.26

Go 1.26

Third-party support for the Google Go 1.26: 24/7 engineers manage issues, remediate vulnerabilities, and help you maintain compliance — independent of the vendor contract.

Issue Management

24/7 engineers own your Go 1.26 incidents end to end.

Vulnerability Remediation

Mitigation and patch-around guidance when the vendor no longer ships fixes.

Compliance Maintenance

Controls evidence and documentation that keep auditors satisfied.

Specifications

product
go
release
1.26
product Label
Go
release Label
1.26
codename
lts
latest Version
1.26.7
release Date
2026-02-10
maintained
true
source Url
https://endoflife.date/go

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OEM vs. 3rd Party Support

See how third-party support compares to the vendor contract for Go 1.26 — monitoring, break/fix, vulnerability work, operations and compliance, before and after EOSL.

FeatureOEM Support3rd Party Support
Post-EOSL Support
Break/Fix Support
Until EOSL
24/7 Monitoring
Vulnerability Scanning & Remediation
Managed Operations
Procedure & Configuration Review
Compliance & Audit Documentation
Limited
Discounted Migration to Other Platforms

Why Choose 3rd Party Support for Go 1.26?

Vulnerability Remediation

Scanning, mitigation and patch-around guidance for Go 1.26 when the vendor no longer ships fixes.

Compliance Maintenance

Procedure review, controls evidence and the documentation auditors ask for — maintained continuously, not scrambled at audit time.

24/7 Expert Support

Engineers who know this release monitor, manage and fix issues around the clock — break/fix to managed operations.

Go 1.26 Support: Frequently Asked Questions

Is the Google Go 1.26 still supported?

Yes. The Go 1.26 is currently supported by Google, and third-party support is available as an alternative — issue management, vulnerability remediation, and compliance help independent of the vendor contract.

How much does third-party support for the Go 1.26 cost?

Typically 40-70% below the OEM maintenance renewal price. Exact pricing depends on quantity, service level and location — request a quote and we respond within 24 hours.

Known Vulnerabilities Affecting Go 1.26

29 published CVEs affect the Google Go 1.26, including 17 rated critical or high severity. Our 24/7 engineers help you assess exposure, prioritize fixes and apply available patches.

CVESeverityCVSSPublishedSummary
CVE-2025-68121CRITICAL10.0Feb 5, 2026During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a se
CVE-2026-27143CRITICAL9.8Apr 8, 2026Arithmetic over induction variables in loops were not correctly checked for underflow or overflow. As a result, the compiler would allow for invalid indexing to occur at runtime, potentially leading to memory corruption.
CVE-2026-27140HIGH8.8Apr 8, 2026SWIG file names containing 'cgo' and well-crafted payloads could lead to code smuggling and arbitrary code execution at build time due to trust layer bypass.
CVE-2026-33810HIGH8.2Apr 8, 2026When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.
CVE-2026-39822HIGH7.8Jul 8, 2026On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open("symlink/")' will open "symlink" even when "symlink" is a symbolic link pointing outside of the root.
CVE-2026-42501HIGH7.5May 7, 2026A malicious module proxy can exploit a flaw in the go command's validation of module checksums to bypass checksum database validation. This vulnerability affects any user using an untrusted module proxy (GOMODPROXY) or checksum database (GOSUMDB). A malicious module proxy can serve altered versions of the Go toolchain. When selecting a different version of the Go toolchain than the currently installed toolchain (due to the GOTOOLCHAIN environment variable, or a go.work or go.mod with a toolchain
CVE-2026-42499HIGH7.5May 7, 2026Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.
CVE-2026-39836HIGH7.5May 7, 2026The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).
CVE-2026-39820HIGH7.5May 7, 2026Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.
CVE-2026-33814HIGH7.5May 7, 2026When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.
CVE-2026-33811HIGH7.5May 7, 2026When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.
CVE-2026-32283HIGH7.5Apr 8, 2026If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.
CVE-2026-32281HIGH7.5Apr 8, 2026Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.
CVE-2026-32280HIGH7.5Apr 8, 2026During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.
CVE-2026-27137HIGH7.5Mar 6, 2026When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly applied, and only the last constraint will be considered.
CVE-2026-25679HIGH7.5Mar 6, 2026url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.
CVE-2026-27144HIGH7.1Apr 8, 2026The compiler is meant to unwrap pointers which are the operands of a memory move; a no-op interface conversion prevented the compiler from making the correct determination about non-overlapping moves, potentially leading to memory corruption at runtime.
CVE-2026-32282MEDIUM6.4Apr 8, 2026On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root. The Linux fchmodat syscall silently ignores the AT_SYMLINK_NOFOLLOW flag, which Root.Chmod uses to avoid symlink traversal. Root.Chmod checks its target before acting and returns an error if the target is a symlink lying outside the root, so the impact is limited to cases where the target is replaced
CVE-2026-39826MEDIUM6.1May 7, 2026If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.
CVE-2026-39823MEDIUM6.1May 7, 2026CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a <meta> tag's <content> attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the <content> attribute, the escaper would fail to similarly escape it, leading to XSS.

Showing the 20 most severe of 29 known CVEs.

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