🛡️ CVE-2018-17847 — net

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-119 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

golang.org/x/net/html has Improper Restriction of Operations within the Bounds of a Memory Buffer

The html package (aka x/net/html) through 2018-09-25 in Go mishandles <svg><template><desc><t><svg></template>, leading to a panic: runtime error (index out of range) in (*nodeStack).pop in node.go, called from (*parser).clearActiveFormattingElements, during an html.Parse call.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2018-17847 is classified as CWE-119: Improper Restriction of Operations within Memory Buffer Bounds. A read or write is performed without confirming it stays inside the allocated buffer, corrupting adjacent memory.

Affected software

CVE-2018-17847 is recorded against 1 package.

  • golang.org/x/net

Timeline and source

Published on 13 May 2022 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
go.dev (Web)
go.dev (Web)
go.googlesource.com (Web)
lists.fedoraproject.org (Web)
lists.fedoraproject.org (Web)
pkg.go.dev (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-119
Public Exploit ✅ No
Source OSV
Published 2022-05-13
Updated 2026-08-12
Modified 2026-02-04

Affected Packages

Software From version Fixed in
golang.org/x/net — —

Similar Threats

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