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HIGH

CVE-2024-52530

CVSS v3

7.5

HIGH

EPSS Score

0.8 %

exploit probability, as of 2026-10-18

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libsoupAlmaLinux:9all versions · fixed in 2.72.0-8.el9_5.2and 1 other package
  • libsoupAlmaLinux:8all versions · fixed in 2.62.3-6.el8_10and 1 other package

Vendor advisories

  • CVE-2024-52530 Red Hat Product Security348 products fixed · 3 known affected

    libsoup: HTTP request smuggling via stripping null bytes from the ends of header names

    libsoup as a component of Red Hat Enterprise Linux 6 · libsoup-devel as a component of Red Hat Enterprise Linux 6 · libsoup.src as a component of Red Hat Enterprise Linux 6

  • RHSA-2024:9654 Red Hat Product Security22 products fixed

    Red Hat Security Advisory: libsoup security update

  • RHSA-2024:9573 Red Hat Product Security31 products fixed

    Red Hat Security Advisory: libsoup security update

  • RHSA-2024:9576 Red Hat Product Security21 products fixed

    Red Hat Security Advisory: libsoup security update

  • RHSA-2024:9572 Red Hat Product Security21 products fixed

    Red Hat Security Advisory: libsoup security update

  • RHSA-2024:9570 Red Hat Product Security21 products fixed

    Red Hat Security Advisory: libsoup security update

5 more advisories

Full record on NVD

Description

GNOME libsoup before 3.6.0 allows HTTP request smuggling in some configurations because '\\0' characters at the end of header names are ignored, i.e., a "Transfer-Encoding\\0: chunked" header is treated the same as a "Transfer-Encoding: chunked" header.

Technical details

Published
2024-11-11

Frequently asked questions

What is CVE-2024-52530?

GNOME libsoup before 3.6.0 allows HTTP request smuggling in some configurations because '\\0' characters at the end of header names are ignored, i.e., a "Transfer-Encoding\\0: chunked" header is treated the same as a "Transfer-Encoding: chunked" header.

Is CVE-2024-52530 actively exploited?

Active exploitation of CVE-2024-52530 has not been confirmed. Its EPSS score was 0.8% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-52530?

CVE-2024-52530 has a CVSS v3 base score of 7.5 (HIGH severity).

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