Libsoup: information disclosure may leads libsoup client sends authorization header to a…
Priority LOW 33CWE-497Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 24 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-497.
Summary
A flaw was found in libsoup. When libsoup clients encounter an HTTP redirect, they mistakenly send the HTTP Authorization header to the new host that the redirection points to. This allows the new host to impersonate the user to the original host that issued the redirect.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00583 48th percentileScored 2026-11-07
Fix Partial libsoup: 3.6.5Red Hat: 10 advisoriesRed Hat: 24 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 3.6.5 | 3.6.5 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 10 | — | 3.6.5-3.el10_0 | 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 | — | 2.62.3-8.el8_10 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | — | 2.62.3-1.el8_2.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | 2.62.3-2.el8_4.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service | — | 2.62.3-2.el8_4.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | — | 2.62.3-2.el8_4.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | 2.62.3-2.el8_6.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | — | 2.62.3-2.el8_6.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | — | 2.62.3-2.el8_6.4 | 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 9.0 Update Services for SAP Solutions | — | 2.72.0-8.el9_0.4 | 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 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
- libsoup Vendor— Affected before 3.6.5 Fixed in 3.6.5 Patch available CNA
- Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in 3.6.5-3.el10_0 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 2.62.3-8.el8_10 Patch available CNA
- Red Hat Enterprise Linux 8.2 Advanced Update Support VendorRed Hat Affected — Fixed in 2.62.3-1.el8_2.4 Patch available CNA
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 2.62.3-2.el8_4.4 Patch available CNA
- Red Hat Enterprise Linux 8.4 Telecommunications Update Service VendorRed Hat Affected — Fixed in 2.62.3-2.el8_4.4 Patch available CNA
- Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2.62.3-2.el8_4.4 Patch available CNA
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 2.62.3-2.el8_6.4 Patch available CNA
- Red Hat Enterprise Linux 8.6 Telecommunications Update Service VendorRed Hat Affected — Fixed in 2.62.3-2.el8_6.4 Patch available CNA
- Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2.62.3-2.el8_6.4 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 9.0 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2.72.0-8.el9_0.4 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 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 · 25
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/o:redhat:enterprise_linux:10.0 | 10.0 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:8::appstream | 8 | — | Red Hat |
| cpe:/o:redhat:enterprise_linux:8::baseos | 8 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.2::appstream | 8.2 | — | Red Hat |
| cpe:/o:redhat:rhel_aus:8.2::baseos | 8.2 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_tus:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/o:redhat:rhel_aus:8.4::baseos | 8.4 | — | Red Hat |
| cpe:/o:redhat:rhel_e4s:8.4::baseos | 8.4 | — | Red Hat |
- cpe:/o:redhat:enterprise_linux:10.0 Versions 10.0 — ·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:rhel_aus:8.2::appstream Versions 8.2 — ·Red Hat
- cpe:/o:redhat:rhel_aus:8.2::baseos Versions 8.2 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_tus:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/o:redhat:rhel_aus:8.4::baseos Versions 8.4 — ·Red Hat
- cpe:/o:redhat:rhel_e4s:8.4::baseos Versions 8.4 — ·Red Hat
Show 15 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/o:redhat:rhel_tus:8.4::baseos | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_tus:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/o:redhat:rhel_aus:8.6::baseos | 8.6 | — | Red Hat |
| cpe:/o:redhat:rhel_e4s:8.6::baseos | 8.6 | — | Red Hat |
| cpe:/o:redhat:rhel_tus:8.6::baseos | 8.6 | — | 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_e4s:9.0::appstream | 9.0 | — | 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:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
| cpe:/o:redhat:rhel_els:7 | 7 | — | Red Hat |
- cpe:/o:redhat:rhel_tus:8.4::baseos Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_tus:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/o:redhat:rhel_aus:8.6::baseos Versions 8.6 — ·Red Hat
- cpe:/o:redhat:rhel_e4s:8.6::baseos Versions 8.6 — ·Red Hat
- cpe:/o:redhat:rhel_tus:8.6::baseos Versions 8.6 — ·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_e4s:9.0::appstream Versions 9.0 — ·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:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
- cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
Remediation
- Fix · CNA libsoup Fixed in 3.6.5
Red Hat 10 advisories
- RHSA-2025:7505 Released 2025-05-13 · Red Hat rating Importantlibsoup3 security update
- Red Hat Enterprise Linux AppStream (v. 10) libsoup3-3.6.5-3.el10_0, libsoup3-devel-3.6.5-3.el10_0
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libsoup3-doc-3.6.5-3.el10_0
- 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-2025:4624 Released 2025-05-07 · Red Hat rating Importantlibsoup security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) libsoup-devel-2.62.3-2.el8_6.4
- Red Hat Enterprise Linux AppStream E4S (v.8.6) libsoup-devel-2.62.3-2.el8_6.4
- Red Hat Enterprise Linux AppStream TUS (v.8.6) libsoup-devel-2.62.3-2.el8_6.4
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) libsoup-2.62.3-2.el8_6.4
- Red Hat Enterprise Linux BaseOS E4S (v.8.6) libsoup-2.62.3-2.el8_6.4
- Red Hat Enterprise Linux BaseOS TUS (v.8.6) libsoup-2.62.3-2.el8_6.4
Show 7 more Red Hat advisories
- RHSA-2025:4609 Released 2025-05-07 · Red Hat rating Importantlibsoup security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) libsoup-devel-2.62.3-2.el8_4.4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) libsoup-devel-2.62.3-2.el8_4.4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) libsoup-devel-2.62.3-2.el8_4.4
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) libsoup-2.62.3-2.el8_4.4
- Red Hat Enterprise Linux BaseOS E4S (v.8.4) libsoup-2.62.3-2.el8_4.4
- Red Hat Enterprise Linux BaseOS TUS (v.8.4) libsoup-2.62.3-2.el8_4.4
- 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
- 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-2025:4538 Released 2025-05-06 · Red Hat rating Importantlibsoup security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) libsoup-devel-2.62.3-1.el8_2.4
- Red Hat Enterprise Linux BaseOS AUS (v. 8.2) libsoup-2.62.3-1.el8_2.4
- 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
- RHSA-2025:4439 Released 2025-05-05 · Red Hat rating Importantlibsoup security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) libsoup-2.72.0-8.el9_0.4, libsoup-devel-2.72.0-8.el9_0.4
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. 10) | Fixed | RHSA-2025:7505 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:4560 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:7436 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2025:4538 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2025:4609 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2025:4624 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2025:4609 |
| Red Hat Enterprise Linux AppStream E4S (v.8.6) | Fixed | RHSA-2025:4624 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2025:4439 |
| 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 AppStream TUS (v.8.4) | Fixed | RHSA-2025:4609 |
| Red Hat Enterprise Linux AppStream TUS (v.8.6) | Fixed | RHSA-2025:4624 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2025:4560 |
| Red Hat Enterprise Linux BaseOS AUS (v. 8.2) | Fixed | RHSA-2025:4538 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2025:4609 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2025:4624 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.4) | Fixed | RHSA-2025:4609 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.6) | Fixed | RHSA-2025:4624 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2025:4568 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.4) | Fixed | RHSA-2025:4609 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.6) | Fixed | RHSA-2025:4624 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2025:7505 |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-46421
- 2026-10-03 Alias added: GHSA-pr7v-prvv-52v8
References
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Sources
- CVE-2025-46421 · CVE Program
- CVE-2025-46421 · NVD
- FIRST EPSS
- GHSA-pr7v-prvv-52v8 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-46421 · 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