[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"article-go-127-rc1-1264-security-fixes-en":3,"article-related-go-127-rc1-1264-security-fixes-en":30,"series-tools-12b94d42-4411-4423-b114-7628c16b0403":77},{"id":4,"slug":5,"title":6,"content":7,"summary":8,"source":9,"source_url":10,"author":11,"image_url":12,"cover_image":12,"category":13,"language":14,"translated_content":11,"related_article_id":15,"keywords":16,"key_takeaways":22,"views":26,"created_at":27,"published_at":28,"topic_cluster_id":29},"12b94d42-4411-4423-b114-7628c16b0403","go-127-rc1-1264-security-fixes-en","Go 1.27 rc1 and 1.26.4 ship security fixes","\u003Cp data-speakable=\"summary\">\u003Ca href=\"\u002Ftag\u002Fgoogle\">Google\u003C\u002Fa> released Go 1.27 rc1 and Go 1.26.4 with security fixes and telemetry guidance.\u003C\u002Fp>\u003Cp>Google released \u003Ca href=\"https:\u002F\u002Fgo.dev\u002Fdl\u002F#go1.27rc1\" target=\"_blank\" rel=\"noopener\">Go 1.27 release candidate 1\u003C\u002Fa> on Jun. 18, 2026, then followed with \u003Ca href=\"https:\u002F\u002Fgo.dev\u002Fdoc\u002Fdevel\u002Frelease#go1.26.4\" target=\"_blank\" rel=\"noopener\">Go 1.26.4\u003C\u002Fa> and \u003Ca href=\"https:\u002F\u002Fgo.dev\u002Fdoc\u002Fdevel\u002Frelease#go1.25.11\" target=\"_blank\" rel=\"noopener\">Go 1.25.11\u003C\u002Fa> on Jun. 2. The RC asks developers to test production loads and unit tests, while the point releases patch security issues across MIME parsing, textproto errors, x509 hostname checks, x\u002Fnet, x\u002Fcrypto, and x\u002Fsys.\u003C\u002Fp>\u003Ctable>\u003Cthead>\u003Ctr>\u003Cth>項目\u003C\u002Fth>\u003Cth>數值\u003C\u002Fth>\u003C\u002Ftr>\u003C\u002Fthead>\u003Ctbody>\u003Ctr>\u003Ctd>Go 1.27 RC1 release date\u003C\u002Ftd>\u003Ctd>Jun. 18, 2026\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Go 1.26.4 \u002F 1.25.11 release date\u003C\u002Ftd>\u003Ctd>Jun. 2, 2026\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Go telemetry status\u003C\u002Ftd>\u003Ctd>Opt-in, open, anonymous\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Security fixes in Go 1.26.4\u003C\u002Ftd>\u003Ctd>3\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>x\u002Fnet security issues\u003C\u002Ftd>\u003Ctd>5\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>x\u002Fcrypto security issues\u003C\u002Ftd>\u003Ctd>6+\u003C\u002Ftd>\u003C\u002Ftr>\u003C\u002Ftbody>\u003C\u002Ftable>\u003Ch2>What changed\u003C\u002Fh2>\u003Cp>Go 1.27 rc1 is available through the usual download path and via \u003Ccode>go install golang.org\u002Fdl\u002Fgo1.27rc1@latest\u003C\u002Fcode> followed by \u003Ccode>go1.27rc1 download\u003C\u002Fcode>. The team also points developers to draft release notes for the new branch and asks anyone testing it to file issues through the Go tracker.\u003C\u002Fp>\n\u003Cfigure class=\"my-6\">\u003Cimg src=\"https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782290876561-0kzh.png\" alt=\"Go 1.27 rc1 and 1.26.4 ship security fixes\" class=\"rounded-xl w-full\" loading=\"lazy\" \u002F>\u003C\u002Ffigure>\n\u003Cp>In the same update cycle, Google shipped maintenance releases for older branches. Go 1.26.4 and Go 1.25.11 include three security fixes in the core toolchain, and the broader ecosystem saw new tagged releases in \u003Ca href=\"https:\u002F\u002Fpkg.go.dev\u002Fgolang.org\u002Fx\u002Fsys\" target=\"_blank\" rel=\"noopener\">golang.org\u002Fx\u002Fsys\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fpkg.go.dev\u002Fgolang.org\u002Fx\u002Fnet\" target=\"_blank\" rel=\"noopener\">golang.org\u002Fx\u002Fnet\u003C\u002Fa>, and \u003Ca href=\"https:\u002F\u002Fpkg.go.dev\u002Fgolang.org\u002Fx\u002Fcrypto\" target=\"_blank\" rel=\"noopener\">golang.org\u002Fx\u002Fcrypto\u003C\u002Fa>.\u003C\u002Fp>\u003Cul>\u003Cli>MIME header decoding now avoids quadratic CPU use on malformed input.\u003C\u002Fli>\u003Cli>net\u002Ftextproto no longer injects raw attacker-controlled text into error output.\u003C\u002Fli>\u003Cli>crypto\u002Fx509 now splits candidate hostnames once, reducing hostname-check cost.\u003C\u002Fli>\u003Cli>x\u002Fnet fixes HTML parsing bugs, XSS cases, and an idna privilege issue.\u003C\u002Fli>\u003Cli>x\u002Fcrypto patches SSH panics, constraint handling, and a memory leak path.\u003C\u002Fli>\u003C\u002Ful>\u003Cp>Go’s telemetry push is also part of this release cycle. The team says opt-in telemetry stays open and anonymous, and that data from tools such as gopls has already informed earlier fixes and tuning.\u003C\u002Fp>\u003Ch2>Why it matters\u003C\u002Fh2>\u003Cp>For developers, this is less about new language features than about safer upgrades and faster validation. If your services parse MIME, verify certificates, or expose SSH flows, the patched packages close off denial-of-service, injection, and authorization bugs that could surface in production even before a full release lands.\u003C\u002Fp>\n\u003Cfigure class=\"my-6\">\u003Cimg src=\"https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782290875384-mlmw.png\" alt=\"Go 1.27 rc1 and 1.26.4 ship security fixes\" class=\"rounded-xl w-full\" loading=\"lazy\" \u002F>\u003C\u002Ffigure>\n\u003Cp>For the ecosystem, the release candidate invites real-world testing before Go 1.27 finalizes. That matters because Go’s security fixes often land first in x\u002F* modules and then shape how teams pin dependencies, update CI, and decide when to move off older minor versions.\u003C\u002Fp>\u003Cp>The short version: Go’s June update wave is a reminder to test the RC now, patch the point releases where needed, and decide whether to opt into telemetry before the next round of release decisions is made.\u003C\u002Fp>","Google released Go 1.27 rc1 plus Go 1.26.4 and 1.25.11, with telemetry, SSH fixes, and multiple CVE patches.","releasebot.io","https:\u002F\u002Freleasebot.io\u002Fupdates\u002Fgoogle\u002Fgolang",null,"https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782290876561-0kzh.png","tools","en","11a1e847-ffc9-40e1-805f-dde2ce603858",[17,18,19,20,21],"Go","Google","security updates","telemetry","release candidate",[23,24,25],"Go 1.27 rc1 is out for production and test validation.","Go 1.26.4 and 1.25.11 patch three core security issues.","x\u002Fnet, x\u002Fcrypto, and x\u002Fsys also received urgent fixes.",0,"2026-06-24T08:47:33.902085+00:00","2026-06-24T08:47:33.892+00:00","a7343b93-37cc-4634-a2bc-707f6275bdb6",{"tags":31,"relatedLang":36,"relatedPosts":40},[32,34],{"name":17,"slug":33},"go",{"name":18,"slug":35},"google",{"id":15,"slug":37,"title":38,"language":39},"go-127-rc1-1264-security-fixes-zh","Go 1.27 rc1 與 1.26.4 修補安全問題","zh",[41,47,53,59,65,71],{"id":42,"slug":43,"title":44,"cover_image":45,"image_url":45,"created_at":46,"category":13},"7d032494-02a0-4f35-b213-4541fc055fb6","codex-log-bug-write-ssd-fix-en","Codex日志bug把SSD写废了怎么办","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782306220295-visi.png","2026-06-24T13:03:12.763441+00:00",{"id":48,"slug":49,"title":50,"cover_image":51,"image_url":51,"created_at":52,"category":13},"d7346581-d20f-40d6-a68a-2bc3202e6e23","open-source-agent-orchestrators-parallel-coding-autonomy-en","Open-source agent orchestrators are ready for parallel coding, not fu…","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782292674309-i1bq.png","2026-06-24T09:17:25.524293+00:00",{"id":54,"slug":55,"title":56,"cover_image":57,"image_url":57,"created_at":58,"category":13},"d3c7fdba-5905-4bbc-884c-8767dd4f3f69","cursor-spacex-ai-coding-productization-en","Cursor让SpaceX式AI编程更像产品","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782277405045-d6ow.png","2026-06-24T05:02:57.82919+00:00",{"id":60,"slug":61,"title":62,"cover_image":63,"image_url":63,"created_at":64,"category":13},"0b5e0100-8da6-4abd-9148-6ab05945d576","dometrain-advanced-system-design-ops-template-en","Dometrain’s system design course turns theory into ops","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782270215908-9wb4.png","2026-06-24T03:03:03.295446+00:00",{"id":66,"slug":67,"title":68,"cover_image":69,"image_url":69,"created_at":70,"category":13},"1beb929d-4b02-4ee5-9098-c4c95c7c8825","cdns-stock-page-turns-noise-into-watchlist-en","CDNS stock page turns market noise into a watch list","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782268391242-ty19.png","2026-06-24T02:32:50.226771+00:00",{"id":72,"slug":73,"title":74,"cover_image":75,"image_url":75,"created_at":76,"category":13},"6d6cd720-2fea-4a4b-b29e-08cae3e105f0","github-open-source-music-topic-shortlist-en","GitHub’s music topic turns discovery into a 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