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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2025-4673

Sensitive headers not cleared on cross-origin redirect in net/httpCVE-2025-4673

Answer in brief

CVE-2025-4673 records a Unknown severity vulnerability in Sensitive headers not cleared on cross-origin redirect in net/http. The current sources do not mark it as known exploited. The current feed maps stdlib (go). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 11, 2025Updated Oct 14, 2026Source checked Oct 14, 2026First seen by HOL Oct 14, 2026Material review Oct 14, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps stdlib (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
stdlibgo>=0 <1.23.10 >=1.24.0-0 <1.24.41.23.10, 1.24.4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for stdlib.
  2. 2Review the reported fix. Update stdlib to 1.23.10 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jun 11, 2025

    Evidence: source:osv:source_dates:source-dates:record

  2. Source modified

    Oct 14, 2026

    Evidence: source:osv:source_dates:source-dates:record

  3. First seen by HOL

    Oct 14, 2026

Sources and claim methodology

  • Source referencego.dev
  • Source referencego.dev
  • Source referencegroups.google.com
Upstream source description

Proxy-Authorization and Proxy-Authenticate headers persisted on cross-origin redirects potentially leaking sensitive information.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
OSV
Source checked
Oct 14, 2026
References
3 linked sources
Open source record