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Noroxi
NVD / CVE Program· CNA Go

CVE-2025-4673: Sensitive headers not cleared on cross-origin redirect in net/http

Noroxi assessment

Priority: Monitor (action score 27/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.66% (FIRST EPSS); higher than 51.5% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Go standard library net/http 1.23.10, 1.24.4.

Low priority for now. Upgrade to Go standard library net/http 1.23.10, 1.24.4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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

MediumCVSS 6.8 · v3.1—No exploit Fix available
Published
Jun 11, 2025
Updated
Jun 17, 2026
EPSS
0.6% · 51th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-4673

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Go). Independent of NVD's CPE analysis and usually ahead of it.

  • Go standard library net/http

    • before 1.23.10affected · semver
    • 1.24.0-0 and later · before 1.24.4affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10golang-docsbefore 1.24.4-1.el10_0.alma.11.24.4-1.el10_0.alma.1
AlmaLinux:10golang-miscbefore 1.24.4-1.el10_0.alma.11.24.4-1.el10_0.alma.1
AlmaLinux:10golang-srcbefore 1.24.4-1.el10_0.alma.11.24.4-1.el10_0.alma.1
AlmaLinux:10golang-testsbefore 1.24.4-1.el10_0.alma.11.24.4-1.el10_0.alma.1
AlmaLinux:10opentelemetry-collectorbefore 0.127.0-3.el10_00.127.0-3.el10_0
AlmaLinux:8delvebefore 1.24.1-1.module_el8.10.0+3977+66935a261.24.1-1.module_el8.10.0+3977+66935a26
AlmaLinux:8go-toolsetbefore 1.24.4-1.module_el8.10.0+4027+41c6fed21.24.4-1.module_el8.10.0+4027+41c6fed2
AlmaLinux:8golangbefore 1.24.4-1.module_el8.10.0+4027+41c6fed21.24.4-1.module_el8.10.0+4027+41c6fed2
AlmaLinux:8golang-binbefore 1.24.4-1.module_el8.10.0+4027+41c6fed21.24.4-1.module_el8.10.0+4027+41c6fed2
AlmaLinux:8golang-docsbefore 1.24.4-1.module_el8.10.0+4027+41c6fed21.24.4-1.module_el8.10.0+4027+41c6fed2
AlmaLinux:8golang-miscbefore 1.24.4-1.module_el8.10.0+4027+41c6fed21.24.4-1.module_el8.10.0+4027+41c6fed2
AlmaLinux:8golang-srcbefore 1.24.4-1.module_el8.10.0+4027+41c6fed21.24.4-1.module_el8.10.0+4027+41c6fed2
AlmaLinux:8golang-testsbefore 1.24.4-1.module_el8.10.0+4027+41c6fed21.24.4-1.module_el8.10.0+4027+41c6fed2
AlmaLinux:9go-toolsetbefore 1.24.4-1.el9_61.24.4-1.el9_6
AlmaLinux:9golangbefore 1.24.4-1.el9_61.24.4-1.el9_6
AlmaLinux:9golang-binbefore 1.24.4-1.el9_61.24.4-1.el9_6
AlmaLinux:9golang-docsbefore 1.24.4-1.el9_61.24.4-1.el9_6
AlmaLinux:9golang-miscbefore 1.24.4-1.el9_61.24.4-1.el9_6
AlmaLinux:9golang-racebefore 1.24.4-1.el9_61.24.4-1.el9_6
AlmaLinux:9golang-srcbefore 1.24.4-1.el9_61.24.4-1.el9_6
AlmaLinux:9golang-testsbefore 1.24.4-1.el9_61.24.4-1.el9_6
AlmaLinux:9opentelemetry-collectorbefore 0.127.0-2.el9_60.127.0-2.el9_6
Debian:12golang-1.19from 0—
Debian:13golang-1.24before 1.24.4-11.24.4-1

+63

Same product

go standard library: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-45288HTTP/2 CONTINUATION flood in net/http
    58Plan
  • CVE-2026-78663Double flow control refund on HTTP/2 server streams in net/http
    36Monitor
  • CVE-2026-97032HTTP/2 server crash due to HPACK encoder race in net/http
    30Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2024-45336Jan 27, 2025 · Sensitive headers incorrectly sent after cross-domain redirect in net/http
    24Monitor
  • ← EarlierCVE-2025-22870Mar 12, 2025 · HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net
    17Monitor
  • Later →CVE-2025-47910Sep 22, 2025 · CrossOriginProtection insecure bypass patterns not limited to exact matches in net/http
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Go standard library net/http1.23.10Vendor (CNA)
Go standard library net/http1.24.4Vendor (CNA)
almalinux:delve1.24.1-1.module_el8.10.0+3977+66935a26 · AlmaLinux:8Package registry (OSV)
almalinux:go-toolset1.24.4-1.module_el8.10.0+4027+41c6fed2 · AlmaLinux:8Package registry (OSV)
almalinux:golang1.24.4-1.module_el8.10.0+4027+41c6fed2 · AlmaLinux:8Package registry (OSV)
almalinux:golang-bin1.24.4-1.module_el8.10.0+4027+41c6fed2 · AlmaLinux:8Package registry (OSV)
almalinux:golang-docs1.24.4-1.module_el8.10.0+4027+41c6fed2 · AlmaLinux:8Package registry (OSV)
almalinux:golang-misc1.24.4-1.module_el8.10.0+4027+41c6fed2 · AlmaLinux:8Package registry (OSV)
almalinux:golang-race1.24.4-1.el9_6 · AlmaLinux:9Package registry (OSV)
almalinux:golang-src1.24.4-1.module_el8.10.0+4027+41c6fed2 · AlmaLinux:8Package registry (OSV)
almalinux:golang-tests1.24.4-1.module_el8.10.0+4027+41c6fed2 · AlmaLinux:8Package registry (OSV)
almalinux:opentelemetry-collector0.127.0-2.el9_6 · AlmaLinux:9Package registry (OSV)
debian:golang-1.241.24.4-1 · Debian:13Package registry (OSV)
Go:stdlib1.23.10Package registry (OSV)
Go:stdlib1.24.4Package registry (OSV)
opensuse:go1.231.23.10-150000.1.34.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:go1.23-openssl1.23.12-150600.13.9.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:go1.241.24.4-150000.1.26.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:go1.24-openssl1.24.6-150600.13.9.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:golang-github-prometheus-prometheus3.13.2-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:govulncheck-vulndb0.0.20250612T141001-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:delve0:1.24.1-1.module+el8.10.0+22945+b2c96a17 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:delve-debuginfo0:1.24.1-1.module+el8.10.0+22945+b2c96a17 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:delve-debugsource0:1.24.1-1.module+el8.10.0+22945+b2c96a17 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:go-toolset0:1.24.4-1.module+el8.10.0+23323+67916f33 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:golang0:1.24.4-1.module+el8.10.0+23323+67916f33 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:golang-bin0:1.24.4-1.module+el8.10.0+23323+67916f33 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:golang-docs0:1.24.4-1.module+el8.10.0+23323+67916f33 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:golang-misc0:1.24.4-1.module+el8.10.0+23323+67916f33 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:golang-race0:1.24.4-1.el9_6 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)

+19

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-45336135 days apartSensitive headers incorrectly sent after cross-domain redirect in net/http
    24Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-201 · Insertion of Sensitive Information Into Sent Data

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records