CVE-2021-23807

highpriority · track · 40EPSS 0.028 · 86 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.75% (86th) EPSS

CVSS 7.5 · high

Is it mine?

8 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5.6–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.15.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:Csecondary · ENISA EU

v3.15.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · report@snyk.ioexploitability 2.2 · impact 3.4

v3.15.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · OSV

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-843USprimaryCWE-1321USCWE-843USCWE-843US

affected products (8)

Products and version ranges known to be affected.

n/a jsonpointerunspecified → 5.0.0enisa_euvdEU
NPM, Inc. jsonpointer≤ 5.0.0fstec_bduRU
Red Hat Inc. Red Hat OpenShift Container Platform≤ 3.11fstec_bduRU
Red Hat Inc. Red Hat OpenShift Container Platform≤ 4fstec_bduRU
Red Hat Inc. Red Hat Quay≤ 3fstec_bduRU
janl jsonpointer< 5.0.0nvdUScpe:2.3:a:janl:jsonpointer:*:*:*:*:*:*:*:*
npm jsonpointer< 5.0.0osvUSpkg:npm/jsonpointer
npm org.webjars.npm:json-pointer< 5.0.0osvUSpkg:npm/org.webjars.npm:json-pointer

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-282f-qqgm-c34qPrototype Pollution in node-jsonpointer2021-11-08ghsa · osvUS
This affects the package `jsonpointer` before `5.0.0`. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2021-11-03modified 2026-06-17

related (1,199)

Related entries.

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+1194 more

references (13)

External citations — patches, advisories, analysis.

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