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🛡️ CVE-2025-4673 — golang

🟡 CVSS 6.8 — Medium ✅ No Known Exploit NVD
6.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Sensitive headers not cleared on cross-origin redirect in net/http

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

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity none, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Changed — a successful attack reaches components beyond the vulnerable one.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: None.
  • Availability impact: None.

Affected software

CVE-2025-4673 is recorded against 3 packages.

  • golang
  • stdlib
  • unknown

Timeline and source

Published on 14 June 2025 and last revised on 11 July 2025. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

go.dev (Web)
go.dev (Web)
groups.google.com (Web)
nvd.nist.gov (Web)
pkg.go.dev (Web)

Other advisories for this package

golang has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2025-4673 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity MEDIUM
CVSS Score 6.8
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-06-14
Updated 2026-08-20
Modified 2025-07-11
Fix URL N/A

Affected Packages

Software From version Fixed in
golang — —
stdlib — —
unknown — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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