CVE-2020-26237

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.32% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 68.7% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H

NVD analysis status

Modified. 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.

Published

2020-11-24 23:00Z5 YR AGO

Last updated

2024-08-04 15:56Z2 YR AGO

Reserved

2020-10-01

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N

Weaknesses

• CWE-471Modification of Assumed-Immutable Data (MAID)Base
• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

ed4bbdd50a1a18e02418058800fa10913122075c18525e3bc0cd788d4c8e364e

• github.comhttps://github.com/highlightjs/highlight.js/security/advisories/GHSA-vfrc-7r7c-w9mxx_refsource_CONFIRM
• github.comhttps://github.com/highlightjs/highlight.js/pull/2636x_refsource_MISC
• www.npmjs.comhttps://www.npmjs.com/package/highlight.jsx_refsource_MISC
• github.comhttps://github.com/highlightjs/highlight.js/commit/7241013ae011a585983e176ddc0489a7a52f6bb0x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20201230 [SECURITY] [DLA 2511-1] highlight.js security updatehttps://lists.debian.org/debian-lts-announce/2020/12/msg00041.htmlmailing-listx_refsource_MLIST
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2022.htmlx_refsource_MISC