fix(security): upgrade Go from 1.25.11 to 1.26.4 to fix 23 stdlib CVEs#2788
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theakshaypant merged 1 commit intoJun 18, 2026
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This pull request updates the Go version in the go.mod file from 1.25.11 to 1.26.4. There are no review comments, and I have no additional feedback to provide.
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Addresses Go stdlib vulnerabilities that require upgrading the compiler toolchain from Go 1.25.11 to Go 1.26.4. CVEs fixed: - CVE-2026-27137 (GO-2026-4599): Incorrect email constraints in crypto/x509 - CVE-2026-27138 (GO-2026-4600): Panic in name constraint checking in crypto/x509 - CVE-2026-25679 (GO-2026-4601): Incorrect IPv6 host literal parsing in net/url - CVE-2026-27139 (GO-2026-4602): FileInfo escape from Root in os - CVE-2026-27142 (GO-2026-4603): Unescaped URLs in meta content in html/template - CVE-2026-32282 (GO-2026-4864): TOCTOU root escape via Root.Chmod in os - CVE-2026-32289 (GO-2026-4865): XSS via JsBraceDepth tracking bug in html/template - CVE-2026-33810 (GO-2026-4866): Auth bypass via case-sensitive name constraints in crypto/x509 - CVE-2026-32288 (GO-2026-4869): Unbounded allocation for GNU sparse in archive/tar - CVE-2026-32283 (GO-2026-4870): Connection retention via unauthenticated TLS 1.3 KeyUpdate - CVE-2026-32281 (GO-2026-4946): Inefficient policy validation in crypto/x509 - CVE-2026-32280 (GO-2026-4947): Unexpected work during chain building in crypto/x509 - CVE-2026-33814 (GO-2026-4918): Infinite loop in HTTP/2 transport in net/http - CVE-2026-39836 (GO-2026-4971): Panic in Dial/LookupPort with NUL byte in net - CVE-2026-39825 (GO-2026-4976): ReverseProxy forwards excess URL params in net - CVE-2026-42499 (GO-2026-4977): Quadratic string concat in net/mail - CVE-2026-39826 (GO-2026-4980): XSS via escaper bypass in html/template - CVE-2026-33811 (GO-2026-4981): Crash on long CNAME response in net - CVE-2026-39823 (GO-2026-4982): XSS via meta content URL escaping bypass in html/template - CVE-2026-39820 (GO-2026-4986): Quadratic concat in consumeComment in net/mail - CVE-2026-27145 (GO-2026-5037): Inefficient hostname parsing in crypto/x509 - CVE-2026-42504 (GO-2026-5038): Quadratic complexity in mime.WordDecoder - CVE-2026-42507 (GO-2026-5039): Unescaped inputs in errors in net/textproto go 1.25.11 is the latest patch in the 1.25.x series — these fixes require Go 1.26.x. No dependency changes: go.sum unchanged, go mod verify passes. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Signed-off-by: Akshay Pant <akpant@redhat.com>
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📝 Description of the Change
Upgrades the Go toolchain from 1.25.11 → 1.26.4 to address 23 Go standard library CVEs.
go 1.25.11is the latest patch release in the 1.25.x series — these vulnerabilities require Go 1.26.x and cannot be backported to 1.25.x.Changes:
go.mod(go 1.25.11→go 1.26.4). No dependency version changes;go.sumis unchanged.CVEs Fixed (23 total)
How this change was made
go 1.25.11→go 1.26.4ingo.modGOTOOLCHAIN=go1.26.4 go mod tidy— no dependency changesGOTOOLCHAIN=go1.26.4 go mod verify— all modules verifiedGOTOOLCHAIN=go1.26.4 go build ./...— successGOTOOLCHAIN=go1.26.4 go test ./pkg/...— all tests passCommits
e78b7c7fix(security): upgrade Go from 1.25.11 to 1.26.4 to fix 23 stdlib CVEs👨🏻 Linked Jira
N/A — CVEs discovered via Go vulnerability database (vuln.go.dev) direct check.
🔗 Linked GitHub Issue
N/A
🧪 Testing Strategy
go test ./pkg/...— all passed)go build ./...— success)go mod verify— all modules verified🤖 AI Assistance
This PR was created by the Ambient CVE Fixer workflow (Claude Sonnet 4.6).
CVEs were identified by querying the Go vulnerability database (vuln.go.dev) directly.