CVE-2024-24806Public exploitNetwork attack vector

SSRF via unterminated hostname truncation

Published Feb 7, 2024 · Updated Jun 17, 2025

SSRF in libuv 1.24.0 through 1.47.0 allows remote attackers to reach unintended IP addresses via crafted hostnames over 256 bytes. The uv_getaddrinfo path passes uv__idna_toascii a 256-byte buffer that can fill without a null terminator, so getaddrinfo reads a truncated numeric address as valid. Applications must pass attacker-controlled hostnames through this path and trust the resolved address; exposed services can then reach internal APIs.

CVSS severity7.3
High
EPSS probability2.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

SSRF in libuv 1.24.0 through 1.47.0 allows remote attackers to reach unintended IP addresses via crafted hostnames over 256 bytes. The uv_getaddrinfo path passes uv__idna_toascii a 256-byte buffer that can fill without a null terminator, so getaddrinfo reads a truncated numeric address as valid. Applications must pass attacker-controlled hostnames through this path and trust the resolved address; exposed services can then reach internal APIs.

The record

CVE
CVE-2024-24806
Published
Feb 7, 2024
Updated
Jun 17, 2025
Vendor
libuv
Product
libuv
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.45.0, < 1.48.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

libuv · libuvversion=>= 1.45.0, < 1.48.0

Published CVSS scores

7.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo