CVE-2024-30261 | Undici's fetch with integrity option is too lax when algorithm is specified but hash value is in incorrect

Exp

Undici is an HTTP/1.1 client, written from scratch for Node.js. An attacker can alter the `integrity` option passed to `fetch()`, allowing `fetch()` to accept requests as valid even if they have been tampered. This vulnerability was patched in version(s) 5.28.4 and 6.11.1.

Published: 2024-04-04 Last update: 2025-11-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-30261 is rated Exploit Available (50/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.09%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-30261

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-30261

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-04 0.16% 0.09% -0.07%
2 2026-01-01 0.10% 0.16% +0.06%
3 2025-12-04 — 0.10% —

Full EPSS history (32 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-30261

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.6 3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.2 1.4 [email protected]
3.5 3.1 LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.1 1.4 [email protected]

Weakness enumeration for CVE-2024-30261

GitHub Security Advisory for CVE-2024-30261

GHSA-9qxr-qj54-h672 · Severity: low · Ecosystem: npm — Undici's fetch with integrity option is too lax when algorithm is specified but hash value is in incorrect

OS Trackers for CVE-2024-30261

vendor priority summary link
debian not yet assigned CVE-2024-30261 not yet assigned priority: Debian including 1 source packages (node-undici), 4 status rows across 4 suites (bookworm, forky, sid, trixie): resolved 3, open 1. https://security-tracker.debian.org/tracker/CVE-2024-30261
redhat low — https://access.redhat.com/security/cve/CVE-2024-30261
suse medium CVE-2024-30261 severity moderate: SUSE including 39 source package names (18-17.2:nodejs18-18.20.1-150400.9.21.3, 18-17.2:npm18-18.20.1-150400.9.21.3, …), 101 product×package rows across 19 product lines (Container bci/nodejs, SUSE Enterprise Storage 7.1, … (19 product lines)): Fixed 76, Will Not Fix 16, Known Not Affected 9. https://www.suse.com/security/cve/CVE-2024-30261/
ubuntu medium CVE-2024-30261 medium priority: Ubuntu including 1 source packages (node-undici), 8 status rows across 8 suites (focal, jammy, mantic, noble, oracular, plucky, questing, upstream): DNE 2, ignored 2, not-affected 2, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2024-30261

Affected software / configurations for CVE-2024-30261

Vendor Product Version Raw CPE
nodejs undici < 5.28.4 cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*
nodejs undici >= 6.0.0, < 6.11.1 cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*
fedoraproject fedora 38 cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
fedoraproject fedora 39 cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
fedoraproject fedora 40 cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

References for CVE-2024-30261

cvelogic Threat Intelligence