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.
Conclusion & alert: CVE-2024-52530 is rated High Exploit Risk (65.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.37%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-12-21 | 0.33% | 0.37% | +0.04% |
| 2 | 2025-12-20 | 0.37% | 0.33% | -0.04% |
| 3 | 2025-11-21 | — | 0.37% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2024-52530: 1 source package rows (libsoup); 9 state rows across 4 repos (3.20-community, 3.22-community, 3.23-community, edge-community); fixed 0, open 9. | https://security.alpinelinux.org/vuln/CVE-2024-52530 |
debian
|
not yet assigned | CVE-2024-52530 not yet assigned priority: Debian including 2 source packages (libsoup2.4, libsoup3), 7 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 7. | https://security-tracker.debian.org/tracker/CVE-2024-52530 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2024-52530 |
suse
|
high | CVE-2024-52530 severity important: SUSE including 55 source package names (1.5.0:libsoup-3_0-0-3.4.4-150600.3.3.1, 2.2.1-7.36:runc-1.3.3-160000.1.1, …), 242 product×package rows across 81 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (81 product lines)): Fixed 242. | https://www.suse.com/security/cve/CVE-2024-52530/ |
ubuntu
|
medium | CVE-2024-52530 medium priority: Ubuntu including 2 source packages (libsoup2.4, libsoup3), 16 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): released 11, not-affected 4, DNE 1. | https://ubuntu.com/security/CVE-2024-52530 |
| URL | Tags |
|---|---|
| https://gitlab.gnome.org/GNOME/libsoup/-/issues/377 | Exploit Issue Tracking |
| https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/402 | Product |
| https://gitlab.gnome.org/Teams/Releng/security/-/wikis/home | Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2024/12/msg00014.html |