Libsoup: heap buffer overflows in sniff_feed_or_html() and skip_insignificant_space()
Priority LOW 36CWE-126Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · Low
- Fix status
- Partial Red Hat: 8 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
A flaw was found in libsoup. A vulnerability in sniff_feed_or_html() and skip_insignificant_space() functions may lead to a heap buffer over-read.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00669 52nd percentileScored 2026-11-07
Fix Partial libsoup: 3.6.1Red Hat: 6 advisoriesRed Hat: 8 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | libsoup | before 3.6.1 | 3.6.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 2.62.3-8.el8_10 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 2.8-3.el8_10.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 8.10-1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 2.62.3-8.el8_10 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support | — | 2.62.3-3.el8_8.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 2.72.0-10.el9_6.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | — | 2.72.0-8.el9_2.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — | 2.72.0-8.el9_4.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 10 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
- libsoup Vendor— Affected before 3.6.1 Fixed in 3.6.1 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 2.62.3-8.el8_10 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 2.8-3.el8_10.1 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 8.10-1 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 2.62.3-8.el8_10 Patch available CNA
- Red Hat Enterprise Linux 8.8 Extended Update Support VendorRed Hat Affected — Fixed in 2.62.3-3.el8_8.4 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 2.72.0-10.el9_6.1 Patch available CNA
- Red Hat Enterprise Linux 9.2 Extended Update Support VendorRed Hat Affected — Fixed in 2.72.0-8.el9_2.4 Patch available CNA
- Red Hat Enterprise Linux 9.4 Extended Update Support VendorRed Hat Affected — Fixed in 2.72.0-8.el9_4.4 Patch available CNA
- Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE names CNA · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/a:redhat:enterprise_linux:8::appstream | 8 | — | Red Hat |
| cpe:/o:redhat:enterprise_linux:8::baseos | 8 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:8::crb | 8 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:8.8::appstream | 8.8 | — | Red Hat |
| cpe:/o:redhat:rhel_eus:8.8::baseos | 8.8 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:9::appstream | 9 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.2::appstream | 9.2 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.4::appstream | 9.4 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:10 | 10 | — | Red Hat |
| cpe:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
- cpe:/a:redhat:enterprise_linux:8::appstream Versions 8 — ·Red Hat
- cpe:/o:redhat:enterprise_linux:8::baseos Versions 8 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:8::crb Versions 8 — ·Red Hat
- cpe:/a:redhat:rhel_eus:8.8::appstream Versions 8.8 — ·Red Hat
- cpe:/o:redhat:rhel_eus:8.8::baseos Versions 8.8 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:9::appstream Versions 9 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.2::appstream Versions 9.2 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.4::appstream Versions 9.4 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:10 Versions 10 — ·Red Hat
- cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
Remediation
- Fix · CNA libsoup Fixed in 3.6.1
Red Hat 6 advisories
- RHSA-2025:8292 Released 2025-05-29 · Red Hat rating Importantmingw-freetype and spice-client-win security update
- Red Hat Enterprise Linux AppStream (v. 8) spice-client-win-8.10-1.el8_10, spice-client-win-x64-8.10-1.el8_10, spice-client-win-x86-8.10-1.el8_10
- Red Hat Enterprise Linux CRB (v. 8) mingw-freetype-2.8-3.el8_10.1, mingw32-freetype-2.8-3.el8_10.1, mingw32-freetype-static-2.8-3.el8_10.1 +2
- RHSA-2025:7436 Released 2025-05-13 · Red Hat rating Importantlibsoup security update
- Red Hat Enterprise Linux AppStream (v. 9) libsoup-2.72.0-10.el9_6.1, libsoup-devel-2.72.0-10.el9_6.1
- RHSA-2025:4568 Released 2025-05-06 · Red Hat rating Importantlibsoup security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) libsoup-devel-2.62.3-3.el8_8.4
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) libsoup-2.62.3-3.el8_8.4
Show 3 more Red Hat advisories
- RHSA-2025:4508 Released 2025-05-06 · Red Hat rating Importantlibsoup security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) libsoup-2.72.0-8.el9_2.4, libsoup-devel-2.72.0-8.el9_2.4
- RHSA-2025:4560 Released 2025-05-06 · Red Hat rating Importantlibsoup security update
- Red Hat Enterprise Linux AppStream (v. 8) libsoup-devel-2.62.3-8.el8_10
- Red Hat Enterprise Linux BaseOS (v. 8) libsoup-2.62.3-8.el8_10
- RHSA-2025:4440 Released 2025-05-05 · Red Hat rating Importantlibsoup security update
- Red Hat Enterprise Linux AppStream EUS (v.9.4) libsoup-2.72.0-8.el9_4.4, libsoup-devel-2.72.0-8.el9_4.4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:4560, RHSA-2025:8292 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:7436 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2025:4568 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2025:4508 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2025:4440 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2025:4560 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2025:4568 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2025:8292 |
Not affected: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2025-32053
- 2026-10-03 Alias added: GHSA-54qp-w9cp-g8g3
- 2026-10-13 EPSS moved to the 50th–90th percentile
References
More Red Hat vulnerabilities
- TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
- TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
- TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
- TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
- TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-32053 · CVE Program
- CVE-2025-32053 · NVD
- FIRST EPSS
- GHSA-54qp-w9cp-g8g3 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-32053 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences