CVE-2026-2581
undici is vulnerable to Unbounded Memory Consumption in in Undici's DeduplicationHandler via Response Buffering leads to DoS
02 Description
undici is vulnerable to Unbounded Memory Consumption in in Undici's DeduplicationHandler via Response Buffering leads to DoS
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.57% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 47.2% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-03-12 20:13Z7 MO AGO
- Last updated
- 2026-03-13 18:04Z7 MO AGO
- Reserved
- 2026-02-16
- Assigning CNA
- openjs
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.9)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-770Allocation of Resources Without Limits or ThrottlingBase
- Data version
- 5.2
- Document digest
- 195f992e5e39290610b682a3ab4ac2a952a2ab70f897c4743c5dc5d97390064c
05 Affected products
06 References
07 Fixed in
AlmaLinux 8
- nodejs Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-devel Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-docs Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-full-i18n Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-libs Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-nodemon Fixed in 3.0.3-1.module_el8.10.0+4061+f8ceeab9
- nodejs-packaging Fixed in 2021.06-6.module_el8.10.0+4086+70facd4a
- nodejs-packaging-bundler Fixed in 2021.06-6.module_el8.10.0+4086+70facd4a
- npm Fixed in 1:11.11.0-1.24.14.1.2.module_el8.10.0+4160+4819ac42
- v8-13.6-devel Fixed in 3:13.6.233.17-1.24.14.1.2.module_el8.10.0+4160+4819ac42
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- nodejs Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-devel Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-docs Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-full-i18n Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-libs Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-nodemon Fixed in 3.0.3-3.module_el9.7.0+209+ecf6523e
- nodejs-packaging Fixed in 2021.06-6.module_el9.7.0+209+ecf6523e
- nodejs-packaging-bundler Fixed in 2021.06-6.module_el9.7.0+198+8bf605ba
- npm Fixed in 1:11.11.0-1.24.14.1.2.module_el9.7.0+222+ef1c61e1
- v8-13.6-devel Fixed in 3:13.6.233.17-1.24.14.1.2.module_el9.7.0+222+ef1c61e1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- nodejs24-docs Fixed in 1:24.14.1-2.el10_1
- nodejs24-npm Fixed in 1:11.11.0-1.24.14.1.2.el10_1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- nodejs Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-devel Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-docs Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-full-i18n Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-libs Fixed in 1:24.14.1-2.module_el8.10.0+4160+4819ac42
- nodejs-nodemon Fixed in 3.0.3-1.module_el8.10.0+4061+f8ceeab9
- nodejs-packaging Fixed in 2021.06-6.module_el8.10.0+4086+70facd4a
- nodejs-packaging-bundler Fixed in 2021.06-6.module_el8.10.0+4086+70facd4a
- npm Fixed in 1:11.11.0-1.24.14.1.2.module_el8.10.0+4160+4819ac42
- v8-13.6-devel Fixed in 3:13.6.233.17-1.24.14.1.2.module_el8.10.0+4160+4819ac42
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- nodejs Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-devel Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-docs Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-full-i18n Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-libs Fixed in 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- nodejs-nodemon Fixed in 3.0.3-3.module_el9.7.0+209+ecf6523e
- nodejs-packaging Fixed in 2021.06-6.module_el9.7.0+209+ecf6523e
- nodejs-packaging-bundler Fixed in 2021.06-6.module_el9.7.0+198+8bf605ba
- npm Fixed in 1:11.11.0-1.24.14.1.2.module_el9.7.0+222+ef1c61e1
- v8-13.6-devel Fixed in 3:13.6.233.17-1.24.14.1.2.module_el9.7.0+222+ef1c61e1
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- nodejs24-docs Fixed in 1:24.14.1-2.el10_1
- nodejs24-npm Fixed in 1:11.11.0-1.24.14.1.2.el10_1
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- node-undici No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- node-undici Fixed in 7.24.5+dfsg+~cs3.2.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- node-undici No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- node-undici No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- node-undici No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- node-undici No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.