Red Hat Fixes libsoup Vulnerabilities in Extended Support Streams
Tech GuruQuick Answer
Three stream-specific libsoup errata address HTTP-library vulnerabilities. Package revisions and the covered CVEs differ across the supported streams. Match installed packages and support entitlements to the errata, apply the supported fixes, validate service operation, and retain evidence.
Confirm Scope And Apply The Supported Remediation
What to do now: Locate applications using distribution-provided libsoup and record the RHEL support stream, package build, HTTP peers and responsible owners. Match product, architecture, package epoch/version/release and support stream to the individual erratum; apply each CVE only where its documented prerequisites hold. Install the libsoup build mapped to the exact RHSA and entitled repository, then restart dependent applications as required by the service owner. Verify loaded library versions and exercise HTTP, proxy, authentication and certificate workflows; retain package and service test evidence.
Last verified: 2026-11-02 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | libsoup on RHEL 9.4 and 9.2 E4S and RHEL 8.8 E4S/TUS |
|---|---|
| Advisory | RHSA-2026:93445 / RHSA-2026:93447 / RHSA-2026:93466 |
| CVEs | CVE-2026-102556, CVE-2026-102557, CVE-2026-102558, CVE-2026-102559, CVE-2026-102560 |
| Authoritative release date | 2026-11-02T03:37:11Z (latest release in this group; individual release dates below) |
| Authority revision date | 2026-11-02T03:38:07Z (latest authority revision in this group) |
| Affected versions | Advisory-listed packages before the corresponding fixed builds on Red Hat Enterprise Linux AppStream E4S (v.8.8); Red Hat Enterprise Linux AppStream E4S (v.9.2); Red Hat Enterprise Linux AppStream E4S (v.9.4); Red Hat Enterprise Linux AppStream TUS (v.8.8); Red Hat Enterprise Linux BaseOS E4S (v.8.8); Red Hat Enterprise Linux BaseOS TUS (v.8.8). |
| Fixed version | libsoup-0:2.62.3-3.el8_8.15.src; libsoup-0:2.72.0-8.el9_2.18.src; libsoup-0:2.72.0-8.el9_4.17.src |
| CVSS base score | 8.6 (CVSS v3.1; CVE-specific) |
| CVSS severity | High |
| Exploitation status | The cited Red Hat advisories do not state that these issues are being maliciously exploited.; no exploitation claim is inferred. |
Authority-Specific Scope And Version Evidence
| RHSA-2026:93445 | Released 2026-11-02T02:30:55Z; revised 2026-11-02T03:38:07Z. Red Hat Enterprise Linux AppStream E4S (v.9.4). Fixed source package families: libsoup-0:2.72.0-8.el9_4.17.src. CVSS: 8.6 (CVSS v3.1; CVE-specific); High. Vendor rating: Important. |
|---|---|
| RHSA-2026:93447 | Released 2026-11-02T02:37:55Z; revised 2026-11-02T03:38:07Z. Red Hat Enterprise Linux AppStream E4S (v.9.2). Fixed source package families: libsoup-0:2.72.0-8.el9_2.18.src. CVSS: 8.6 (CVSS v3.1; CVE-specific); High. Vendor rating: Important. |
| RHSA-2026:93466 | Released 2026-11-02T03:37:11Z; revised 2026-11-02T03:38:07Z. Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8), Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8). Fixed source package families: libsoup-0:2.62.3-3.el8_8.15.src. CVSS: 8.6 (CVSS v3.1; CVE-specific); High. Vendor rating: Important. |
What Changed
Three stream-specific libsoup errata address HTTP-library vulnerabilities. Package revisions and the covered CVEs differ across the supported streams.
What To Validate Now
- Inventory. Locate applications using distribution-provided libsoup and record the RHEL support stream, package build, HTTP peers and responsible owners.
- Establish applicability. Match product, architecture, package epoch/version/release and support stream to the individual erratum; apply each CVE only where its documented prerequisites hold.
- Remediate. Install the libsoup build mapped to the exact RHSA and entitled repository, then restart dependent applications as required by the service owner.
- Validate. Verify loaded library versions and exercise HTTP, proxy, authentication and certificate workflows; retain package and service test evidence.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Do not replace an E4S or TUS package with a different stream. Test applications that process untrusted HTTP responses. CVSS values are the authority-provided per-CVE scores, not a score for the whole update. Retain the advisory, inventory, approval, package and validation records.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
- Red Hat CSAF evidence: rhsa-2026_93445.json
- Red Hat CSAF evidence: rhsa-2026_93447.json
- Red Hat CSAF evidence: rhsa-2026_93466.json
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
