CVE-2023-23936

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

1.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 64.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2023-02-16 17:30Z3 YR AGO

Last updated

2025-03-10 21:10Z1 YR AGO

Reserved

2023-01-19

Assigning CNA

GitHub_M

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:L/I:L/A:N

Weaknesses

• CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')Base
• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class

Data version

5.1

Document digest

be786cc277503a0dc86527ffa5cefc44c6c5631d4910369cc7273c057c983891

• github.comhttps://github.com/nodejs/undici/security/advisories/GHSA-5r9g-qh6m-jxffx_refsource_CONFIRM
• github.comhttps://github.com/nodejs/undici/commit/a2eff05401358f6595138df963837c24348f2034x_refsource_MISC
• hackerone.comhttps://hackerone.com/reports/1820955x_refsource_MISC
• github.comhttps://github.com/nodejs/undici/releases/tag/v5.19.1x_refsource_MISC