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CVE-2026-94448— Reset context tracking on consecutive template expressions in html/template

Quick assessment

Affected
Go standard library html/template
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

当 JavaScript 模板字面量中包含连续表达式时，在进入新表达式前，上下文跟踪状态未能正确重置。现在，我们确保模板字面量中的表达式条目能正确重置上下文变量，从而准确识别并转义后续的所有正则表达式字面量。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.18% · P7

Affected Version Matrix 2

VendorProduct Version RangeStatus
Go standard library html/template < 1.26.9 affected
1.27.0-0< 1.27.2 affected
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I. Basic Information for CVE-2026-94448

Vulnerability Information
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Vulnerability Title
Reset context tracking on consecutive template expressions in html/template
Source: CVE Program / CVE List V5
Vulnerability Description
When a JavaScript template literal contains consecutive expressions, the context tracking state was not properly reset upon entering a new expression. We now ensure that template-literal expression entries correctly reset context variables so all subsequent regular expression literals are accurately recognized and escaped.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Go standard library html/template 0 ~ 1.26.9 -

II. Public POCs for CVE-2026-94448

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III. Intelligence Information for CVE-2026-94448

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Patches & Fixes for CVE-2026-94448 (1)

Vendor Advisories for CVE-2026-94448 (1)

Vendor Pages for CVE-2026-94448 (1)

Other References for CVE-2026-94448 (1)

Same Patch Batch · Go standard library · 2026-10-08 · 13 CVEs total

CVE-2026-94439 HTTP/1 server connection desynchronization after 2xx CONNECT response in net/http
CVE-2026-94440 Memory limit bypass when parsing MIME headers in net/textproto, mime/multipart
CVE-2026-56857 Root.Mkdir(All) can follow junctions out of the root on Windows in os
CVE-2026-56866 HTTP/1 client connection desynchronization after CONNECT rejection in net/http
CVE-2026-78659 HTTP/2 server memory exhaustion due to Trailer headers in net/http
CVE-2026-78660 HTTP/2 transport accepts malformed framing-related headers in net/http
CVE-2026-78663 Double flow control refund on HTTP/2 server streams in net/http
CVE-2026-78667 Lack of limit on size of parsed Range headers in net/http
CVE-2026-78669 Excessive CPU consumption from repeated initial window changes in net/http
CVE-2026-97032 HTTP/2 server crash due to HPACK encoder race in net/http
CVE-2026-97030 Recognize yield as regexp preceder keyword in html/template
CVE-2026-97031 Reject malformed ECH outer extension references in crypto/tls

IV. Related Vulnerabilities

Same product: html/template
Same vendor: Go standard library

V. Comments for CVE-2026-94448

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