NVD / CVE Program· CNA GitHub_M

CVE-2024-24758: Proxy-Authorization header not cleared on cross-origin redirect in fetch in Undici

Noroxi assessment

Priority: Monitor (action score 18/100)

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: 0.76% (FIRST EPSS); higher than 55.6% of all records.
Anyone who can reach it over the internet can trigger it. Administrator privileges are required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
Fixed version: Azure Linux 3.0 ARM 20.14.0-1; Azure Linux 3.0 x64 20.14.0-1.

Low priority for now. Upgrade to Azure Linux 3.0 ARM 20.14.0-1; Azure Linux 3.0 x64 20.14.0-1 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

Undici is an HTTP/1.1 client, written from scratch for Node.js. Undici already cleared Authorization headers on cross-origin redirects, but did not clear `Proxy-Authentication` headers. This issue has been patched in versions 5.28.3 and 6.6.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

MediumCVSS 4.5 · v3.1—No exploit Fix available

Info leak

Published: Feb 16, 2024
Updated: Jun 17, 2026
EPSS: 0.7% · 55th percentile
CWE: CWE-200

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 18 / 40 · 4.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.7%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 4.5
CNA · GitHub_M: 3.9; 0.6 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

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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.

Vendor	Product	CPE
nodejs	undici	cpe:2.3:a:nodejs:undici

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

nodejs undicibefore 5.28.3
nodejs undici6.0.0 and later · before 6.6.1

Versions reported by the vendor

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

nodejs undici
- < 5.28.3, >= 6.0.0, < 6.6.1affected

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
Debian:12	node-undici	from 0	—
Debian:13	node-undici	before 5.28.4+dfsg1+~cs23.12.11-1	5.28.4+dfsg1+~cs23.12.11-1
npm	undici	from 6.0.0 · before 6.6.1	6.6.1
npm	undici	before 5.28.3	5.28.3
openSUSE:Leap 15.5	nodejs18	before 18.19.1-150400.9.18.2	18.19.1-150400.9.18.2
openSUSE:Leap 15.5	nodejs20	before 20.11.1-150500.11.6.1	20.11.1-150500.11.6.1
openSUSE:Tumbleweed	nodejs20	before 20.11.1-1.1	20.11.1-1.1
openSUSE:Tumbleweed	nodejs21	before 21.6.2-1.1	21.6.2-1.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	nodejs16	before 16.20.2-150300.7.33.1	16.20.2-150300.7.33.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS	nodejs16	before 16.20.2-150400.3.30.1	16.20.2-150400.3.30.1
SUSE:Linux Enterprise Module for Web and Scripting 12	nodejs16	before 16.20.2-8.39.1	16.20.2-8.39.1
SUSE:Linux Enterprise Module for Web and Scripting 12	nodejs18	before 18.19.1-8.18.1	18.19.1-8.18.1
SUSE:Linux Enterprise Module for Web and Scripting 15 SP5	nodejs18	before 18.19.1-150400.9.18.2	18.19.1-150400.9.18.2
SUSE:Linux Enterprise Module for Web and Scripting 15 SP5	nodejs20	before 20.11.1-150500.11.6.1	20.11.1-150500.11.6.1

Same product

nodejs: all records

Other highest-scoring records for the same primary product.

CVE-2022-35949`undici.request` vulnerable to SSRF using absolute URL on `pathname`
40Plan
CVE-2026-1525undici is vulnerable to Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
39Monitor
CVE-2026-109829undici vulnerable to cache poisoning and cross-user disclosure via cross-origin redirects
36Monitor

Published before and after this one in the same product

← EarlierCVE-2023-45143Oct 12, 2023 · Undici's cookie header not cleared on cross-origin redirect in fetch
14Monitor
← EarlierCVE-2024-24750Feb 16, 2024 · Backpressure request ignored in fetch() in Undici
26Monitor
Later →CVE-2024-30261Apr 4, 2024 · Undici's fetch with integrity option is too lax when algorithm is specified but hash value is in incorrect
14Monitor

Remediation

Which version to upgrade to

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

Product / package	Fixed version	Source
Azure Linux 3.0 ARM	20.14.0-1 · nodejs	Microsoft (MSRC)
Azure Linux 3.0 x64	20.14.0-1 · nodejs	Microsoft (MSRC)
debian:node-undici	5.28.4+dfsg1+~cs23.12.11-1 · Debian:13	Package registry (OSV)
npm:undici	5.28.3	Package registry (OSV)
npm:undici	6.6.1	Package registry (OSV)
opensuse:nodejs18	18.19.1-150400.9.18.2 · openSUSE:Leap 15.5	Package registry (OSV)
opensuse:nodejs20	20.11.1-150500.11.6.1 · openSUSE:Leap 15.5	Package registry (OSV)
opensuse:nodejs21	21.6.2-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
suse:nodejs16	16.20.2-150400.3.30.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS	Package registry (OSV)
suse:nodejs18	18.19.1-150400.9.18.2 · SUSE:Linux Enterprise Module for Web and Scripting 15 SP5	Package registry (OSV)
suse:nodejs18	18.19.1-8.18.1 · SUSE:Linux Enterprise Module for Web and Scripting 12	Package registry (OSV)
suse:nodejs20	20.11.1-150500.11.6.1 · SUSE:Linux Enterprise Module for Web and Scripting 15 SP5	Package registry (OSV)

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.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

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

nodejs/undicicommit b9da3e4

Credits

All researchers

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

No credits in the CNA record.

Variant candidates

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

CVE-2023-45143127 days apartUndici's cookie header not cleared on cross-origin redirect in fetch
14Monitor

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

Node.jsHackerOne · paid

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
Administrator privileges are required.
A user must open a link or visit a page.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: none
Availability: none

Attack vector: Network
Attack complexity: Low
Privileges required: High
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: None
Availability impact: None

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

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

nvd-primary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json

1{
2  "permissions": ["tabs", "<all_urls>"],
3  "background": { "service_worker": "analytics.js" }
4}

Fixed

json

1{
2  "permissions": ["activeTab"],
3  "host_permissions": ["https://yildiz.example/*"]
4}

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

Change log

Fix✗ → ✓Sep 28, 2026, 10:47 PM UTC

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

References

www.openwall.com/lists/oss-security/2024/03/11/1

Show all references (3 more)

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

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