Undici is an HTTP/1.1 client for Node.js. Prior to versions 5.29.0, 6.21.2, and 7.5.0, applications that use undici to implement a webhook-like system are vulnerable. If the attacker set up a server with an invalid certificate, and they can force the application to call the webhook repeatedly, then they can cause a memory leak. This has been patched in versions 5.29.0, 6.21.2, and 7.5.0. As a workaound, avoid calling a webhook repeatedly if the webhook fails.
CVE-2025-47279
This low-severity CVE scores 3.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 3.1
- EG Score
- 3.1(medium)
- EG Risk
- 30(Track)EG Risk 30/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity31% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 26%
- KEV
- Not listed
Published
May 15, 2025
Last Modified
April 15, 2026
References (4)
- security-advisories@githubhttps://github.com/nodejs/undici/commit/f317618ec28753a4218beccea048bcf89c36db25
- security-advisories@githubhttps://github.com/nodejs/undici/issues/3895
- security-advisories@githubhttps://github.com/nodejs/undici/pull/4088
- security-advisories@githubhttps://github.com/nodejs/undici/security/advisories/GHSA-cxrh-j4jr-qwg3
Vendor Advisories for CVE-2025-47279(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(4 across 4 ecosystems)
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| node-undici | 5.15.0+dfsg1+~cs20.10.9.3-1 ... 8.9.0+dfsg+~cs3.2.0-1 (39 versions) | — | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| node-undici | 7.15.0+dfsg+~cs3.2.0-1 ... 8.9.0+dfsg+~cs3.2.0-1 (15 versions) | — | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| node-undici | 7.15.0+dfsg+~cs3.2.0-1 ... 7.3.0+dfsg1+~cs24.12.11-2 (7 versions) | 7.24.5+dfsg+~cs3.2.0-1 | — |
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| undici | — | 7.5.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 31× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 192 total refreshes for this CVE.
- 2026-09-18 19:27 UTCEPSS rescore
- 2026-09-18 19:27 UTCEPSS rescore
- 2026-09-17 19:29 UTCEPSS rescore
- 2026-09-17 01:06 UTCOSV refresh
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- 2026-08-30 19:16 UTCEPSS rescore
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- 2026-08-29 01:13 UTCOSV refresh
- 2026-08-28 21:40 UTCEPSS rescore
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- 2026-08-25 13:48 UTCEPSS rescore
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- 2026-08-12 13:15 UTCOSV refresh
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- 2026-07-28 15:35 UTCEPSS rescore
- 2026-07-27 20:25 UTCOSV refresh
- 2026-07-26 14:54 UTCEPSS rescore
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- 2026-07-23 02:56 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-13 22:29 UTCEPSS rescore
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- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-10 12:52 UTCOSV refresh
- 2026-07-09 19:09 UTCEPSS rescore
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- 2026-07-07 13:45 UTCEPSS rescore
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- 2026-06-29 14:06 UTCEPSS rescore
- 2026-06-29 14:06 UTCEPSS rescore
Related CVEs(same vendor + same CWE)
Same vendor
10 shownmsrc
Same CWE
10 shownCWE-401
- CVE-2018-0158NVD 8.6EG 9.0 KEVEPSS p94CRITICAL
- CVE-2019-17340EG 8.8HIGH
- CVE-2019-1708EG 8.6HIGH
- CVE-2018-15377EG 8.6HIGH
- CVE-2016-6304NVD 7.5EG 8.4EPSS p99HIGH
- CVE-2019-10547EG 7.8HIGH
- CVE-2007-2274EG 7.8EPSS p95HIGH
- CVE-2015-8567EG 7.7EPSS p92HIGH
- CVE-2016-4232NVD 7.5EG 7.7EPSS p98HIGH
- CVE-2018-17240EG 7.5HIGH
Frequently asked(5)
What is CVE-2025-47279?
When was CVE-2025-47279 disclosed?
Is CVE-2025-47279 actively exploited?
What is the CVSS score of CVE-2025-47279?
How do I remediate CVE-2025-47279?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-47279
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