# OPENSUSE-SU-2026:21254-1: go1.26-openssl security update OPENSUSE-SU-2026:21254-1, released July 7, 2026, fixes 24 CVEs in go1.26-openssl (version 1.26.4-160000.1.1). None of them is reported as exploited. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/fix/linux/opensuse-su-2026-21254-1 - Platform: Linux - Released: Jul 7, 2026 - Priority: Urgent (Closes CVE-2026-27140, rated Critical) - CVEs: 24, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://osv.dev/vulnerability/openSUSE-SU-2026:21254-1 ## Applies to | Product | Release | Fixed in | |---|---|---| | [go1.26-openssl](https://patchblox.com/security/data/product/linux/go1.26-openssl.md) | opensuse-leap 16.0 | 1.26.4-160000.1.1 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2026-27140](https://patchblox.com/security/data/cve/CVE-2026-27140.md) | Urgent | Code execution vulnerability in SWIG code generation in cmd/go | 9.8 | 0.0067 | | | [CVE-2026-27143](https://patchblox.com/security/data/cve/CVE-2026-27143.md) | Urgent | Missing bound checks can lead to memory corruption in safe Go in cmd/compile | 9.8 | 0.0055 | | | [CVE-2026-33811](https://patchblox.com/security/data/cve/CVE-2026-33811.md) | High | Crash when handling long CNAME response in net | 8.8 | 0.0088 | | | [CVE-2026-33814](https://patchblox.com/security/data/cve/CVE-2026-33814.md) | High | Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net | 7.5 | 0.0084 | | | [CVE-2026-42499](https://patchblox.com/security/data/cve/CVE-2026-42499.md) | High | Quadratic string concatenation in consumePhrase in net/mail | 8.8 | 0.0080 | | | [CVE-2026-39820](https://patchblox.com/security/data/cve/CVE-2026-39820.md) | High | Quadratic string concatentation in consumeComment in net/mail | 8.8 | 0.0078 | | | [CVE-2026-39836](https://patchblox.com/security/data/cve/CVE-2026-39836.md) | High | Panic in Dial and LookupPort when handling NUL byte on Windows in net | 7.5 | 0.0063 | | | [CVE-2026-32283](https://patchblox.com/security/data/cve/CVE-2026-32283.md) | High | Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls | 9.1 | 0.0063 | | | [CVE-2026-32280](https://patchblox.com/security/data/cve/CVE-2026-32280.md) | High | Unexpected work during chain building in crypto/x509 | 9.1 | 0.0063 | | | [CVE-2026-27145](https://patchblox.com/security/data/cve/CVE-2026-27145.md) | High | Inefficient candidate hostname parsing in crypto/x509 | 8.2 | 0.0059 | | | [CVE-2026-42504](https://patchblox.com/security/data/cve/CVE-2026-42504.md) | High | Quadratic complexity in WordDecoder.DecodeHeader in mime | 8.8 | 0.0056 | | | [CVE-2026-39825](https://patchblox.com/security/data/cve/CVE-2026-39825.md) | High | ReverseProxy forwards queries with more than urlmaxqueryparams parameters in net/http/httputil | 7.5 | 0.0039 | | | [CVE-2026-39826](https://patchblox.com/security/data/cve/CVE-2026-39826.md) | High | Escaper bypass leads to XSS in html/template | 7.5 | 0.0037 | | | [CVE-2026-32281](https://patchblox.com/security/data/cve/CVE-2026-32281.md) | High | Inefficient policy validation in crypto/x509 | 9.1 | 0.0036 | | | [CVE-2026-33810](https://patchblox.com/security/data/cve/CVE-2026-33810.md) | High | Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509 | 9.1 | 0.0035 | | | [CVE-2026-39823](https://patchblox.com/security/data/cve/CVE-2026-39823.md) | High | Bypass of meta content URL escaping causes XSS in html/template | 7.5 | 0.0031 | | | [CVE-2026-32282](https://patchblox.com/security/data/cve/CVE-2026-32282.md) | High | TOCTOU permits root escape on Linux via Root.Chmod in os in internal/syscall/unix | 9.1 | 0.0030 | | | [CVE-2026-27144](https://patchblox.com/security/data/cve/CVE-2026-27144.md) | High | Miscompilation allows memory corruption via CONVNOP-wrapped array copy in cmd/compile | 9.0 | 0.0027 | | | [CVE-2026-42501](https://patchblox.com/security/data/cve/CVE-2026-42501.md) | High | Malicious module proxy can bypass checksum database in cmd/go | 7.5 | 0.0023 | | | [CVE-2026-39819](https://patchblox.com/security/data/cve/CVE-2026-39819.md) | High | Invoking "go bug" follows symlinks in predictable temporary filenames in cmd/go | 7.5 | 0.0018 | | | [CVE-2026-39817](https://patchblox.com/security/data/cve/CVE-2026-39817.md) | High | Invoking "go tool pack" does not sanitize output paths in cmd/go | 7.5 | 0.0017 | | | [CVE-2026-42507](https://patchblox.com/security/data/cve/CVE-2026-42507.md) | Routine | Arbitrary inputs are included in errors without any escaping in net/textproto | 5.3 | 0.0037 | | | [CVE-2026-32289](https://patchblox.com/security/data/cve/CVE-2026-32289.md) | Routine | JsBraceDepth Context Tracking Bugs (XSS) in html/template | 6.1 | 0.0030 | | | [CVE-2026-32288](https://patchblox.com/security/data/cve/CVE-2026-32288.md) | Routine | Unbounded allocation for old GNU sparse in archive/tar | 5.5 | 0.0030 | | --- Data as of 2026-11-10T20:03:11Z UTC. 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