synced 10 MIN AGO
01 Record

CVE-2026-2950

lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`

MediumPUBLISHEDCNA: openjs
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

02 Description

lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`

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.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.33% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 27.0% of scored records. A rank, not a probability.
NVD base score
5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-10-15.
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
2026-03-31 19:18Z7 MO AGO
Last updated
2026-10-15 06:44Z14 DAYS AGO
Reserved
2026-02-21
Assigning CNA
openjs
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weaknesses
  • CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')Variant
  • CWE-915Improperly Controlled Modification of Dynamically-Determined Object AttributesBase
Data version
5.2
Document digest
e04642d8cf3d8d254223e42cc7e371a690c1411adad6b3d60faa3ddb3f05c1cb

05 Affected products

VendorProductVersionsPlatforms
lodashlodash4.17.23 to < 4.18.1—
lodashlodash-es4.17.23 to < 4.18.1—
lodashlodash-amd4.17.23 to < 4.18.1—
lodashlodash.unset0 to < 4.18.0—
lodashlodash.omit0 to < 4.18.0—

06 References

07 Fixed in

Debian 12

  • node-lodash
    Fixed in 4.17.21+dfsg+~cs8.31.198.20210220-9+deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • node-lodash
    Fixed in 4.17.21+dfsg+~cs8.31.198.20210220-9+deb13u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • node-lodash
    Fixed in 4.18.1+dfsg-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • node-lodash
    Fixed in 4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.25.10.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • node-lodash
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • node-lodash
    Fixed in 2.4.1+dfsg-3ubuntu0.1~esm1
    Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • node-lodash
    Fixed in 4.17.4+dfsg-1ubuntu0.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • node-lodash
    Fixed in 4.17.15+dfsg-2ubuntu0.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 22.04 LTS

  • node-lodash
    Fixed in 4.17.21+dfsg+~cs8.31.198.20210220-5ubuntu0.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 24.04 LTS

  • node-lodash
    Fixed in 4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.24.04.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 26.04 LTS

  • node-lodash
    Fixed in 4.17.23+dfsg-1ubuntu0.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

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.