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CVE-2023-30589

HIGH
7.5
CVSS Score
Published: June 30, 2023 at 11:39 PM UTC
Updated: October 8, 2026 at 10:17 PM UTC
2 products affected across 2 vendorsFedoraNode.js

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Severity
HIGH7.5
Exploit prediction
EPSS 4%
SSVC
No known exploit

Description

The llhttp parser in the http module in Node v20.2.0 does not strictly use the CRLF sequence to delimit HTTP requests. This can lead to HTTP Request Smuggling (HRS). The CR character (without LF) is sufficient to delimit HTTP header fields in the llhttp parser. According to RFC7230 section 3, only the CRLF sequence should delimit each header-field. This impacts all Node.js active versions: v16, v18, and, v20

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fedora· Fedora Projectrpm
95%
3738
Node.js· Node.js
95%
10.0 ≤ v < 10.*11.0 ≤ v < 11.*12.0 ≤ v < 12.*13.0 ≤ v < 13.*14.0 ≤ v < 14.*15.0 ≤ v < 15.*16.0 ≤ v < 16.20.116.0.0 ≤ v < 16.20.117.0 ≤ v < 17.*18.0 ≤ v < 18.16.118.0.0 ≤ v < 18.16.119.0 ≤ v < 19.*20.0 ≤ v < 20.3.120.0.0 ≤ v < 20.3.14.0 ≤ v < 4.*5.0 ≤ v < 5.*6.0 ≤ v < 6.*7.0 ≤ v < 7.*8.0 ≤ v < 8.*9.0 ≤ v < 9.**10.011.012.013.014.015.016.017.018.019.020.04.05.06.07.08.09.0
Affected range stops below 10.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.20.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.16.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 20.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.*, so it looks safe — our inference, not a vendor statement

References (10)

ExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://hackerone.com/reports/2001873
Mailing List
Source: [email protected]
https://lists.fedoraproject.org/archives/list/[email protected]/message/HMEELCREWMRT6NS7HWXLA6XFLLMO36HE/
PatchThird Party Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/[email protected]/message/IV326O2X4BE3SINX5FJHMAKVHUAA4ZYF/
Mailing List
Source: [email protected]
https://lists.fedoraproject.org/archives/list/[email protected]/message/UEJWL67XR67JAGEL2ZK22NA3BRKNMZNY/
PatchThird Party Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/[email protected]/message/VCVG4TQRGTK4LKAZKVEQAUEJM7DUACYE/
Mailing List
Source: [email protected]
https://lists.fedoraproject.org/archives/list/[email protected]/message/VEEQIN5242K5NBE2CZ4DYTNA5B4YTYE5/
Mailing List
Source: [email protected]
https://lists.fedoraproject.org/archives/list/[email protected]/message/VKFMKD4MJZIKFQJAAJ4VZ2FHIJ764A76/
Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20230803-0009/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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