VDB
RHSA-2026%3A4943
RHSA-2026%3A4943
PUBLISHED
CVSS 5.300000190734863 MEDIUM
A flaw was found in the email module in the Python standard library. When serializing an email message, the BytesGenerator class fails to properly quote newline characters for email headers. This issue is exploitable when the LiteralHeader class is used as it does not respect email folding rules, allowing an attacker to inject email headers and potentially modify message recipients or the email body, and spoof sender information.
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | registry.redhat.io/rhui5/cds-rhel9@sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524_amd64 as a component of Red Hat Update Infrastructure 5 | registry.redhat.io/rhui5/cds-rhel9@sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524_amd64, registry.redhat.io/rhui5/cds-rhel9@sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524_amd64, registry.redhat.io/rhui5/cds-rhel9@sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524_amd64 |
| Red Hat | registry.redhat.io/rhui5/cds-rhel9@sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524_amd64 as a component of Red Hat Update Infrastructure 5 | registry.redhat.io/rhui5/cds-rhel9@sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524_amd64, *, * |
| Red Hat | registry.redhat.io/rhui5/installer-rhel9@sha256:2c50c87906a1abebf427a70f401c409f1258cb55d2096f517db870ec991cfd7f_amd64 as a component of Red Hat Update Infrastructure 5 | *, *, * |
| Red Hat | Red Hat Update Infrastructure 5 | |
| Red Hat | registry.redhat.io/rhui5/cds-rhel9@sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524_amd64 | |
| Red Hat | registry.redhat.io/rhui5/haproxy-rhel9@sha256:d98fd3fe5f5f9acd0efae7db19b61b864be1eb2fbe2586a1b6be2429fa2cc7a3_amd64 as a component of Red Hat Update Infrastructure 5 | *, *, registry.redhat.io/rhui5/haproxy-rhel9@sha256:d98fd3fe5f5f9acd0efae7db19b61b864be1eb2fbe2586a1b6be2429fa2cc7a3_amd64 |
| Red Hat | registry.redhat.io/rhui5/rhua-rhel9@sha256:5f1fbf66fb349a7baf066a1216d39989c3b89f18ec5108b96d9643baf4856778_amd64 as a component of Red Hat Update Infrastructure 5 | registry.redhat.io/rhui5/rhua-rhel9@sha256:5f1fbf66fb349a7baf066a1216d39989c3b89f18ec5108b96d9643baf4856778_amd64, registry.redhat.io/rhui5/rhua-rhel9@sha256:5f1fbf66fb349a7baf066a1216d39989c3b89f18ec5108b96d9643baf4856778_amd64, * |
| GnuTLS | GnuTLS | |
| Red Hat | registry.redhat.io/rhui5/rhua-rhel9@sha256:5f1fbf66fb349a7baf066a1216d39989c3b89f18ec5108b96d9643baf4856778_amd64 as a component of Red Hat Update Infrastructure 5 | *, *, * |
| Red Hat | registry.redhat.io/rhui5/haproxy-rhel9@sha256:d98fd3fe5f5f9acd0efae7db19b61b864be1eb2fbe2586a1b6be2429fa2cc7a3_amd64 as a component of Red Hat Update Infrastructure 5 | registry.redhat.io/rhui5/haproxy-rhel9@sha256:d98fd3fe5f5f9acd0efae7db19b61b864be1eb2fbe2586a1b6be2429fa2cc7a3_amd64, registry.redhat.io/rhui5/haproxy-rhel9@sha256:d98fd3fe5f5f9acd0efae7db19b61b864be1eb2fbe2586a1b6be2429fa2cc7a3_amd64, registry.redhat.io/rhui5/haproxy-rhel9@sha256:d98fd3fe5f5f9acd0efae7db19b61b864be1eb2fbe2586a1b6be2429fa2cc7a3_amd64 |
| Red Hat | registry.redhat.io/rhui5/cds-rhel9@sha256:200c27e9b396276bd505c6b41127ac5eb1d94d620172cb818ae733f2a21ac524_amd64 as a component of Red Hat Update Infrastructure 5 | |
| Red Hat | registry.redhat.io/rhui5/installer-rhel9@sha256:2c50c87906a1abebf427a70f401c409f1258cb55d2096f517db870ec991cfd7f_amd64 as a component of Red Hat Update Infrastructure 5 | registry.redhat.io/rhui5/installer-rhel9@sha256:2c50c87906a1abebf427a70f401c409f1258cb55d2096f517db870ec991cfd7f_amd64, registry.redhat.io/rhui5/installer-rhel9@sha256:2c50c87906a1abebf427a70f401c409f1258cb55d2096f517db870ec991cfd7f_amd64, registry.redhat.io/rhui5/installer-rhel9@sha256:2c50c87906a1abebf427a70f401c409f1258cb55d2096f517db870ec991cfd7f_amd64 |
| GnuTLS | gnutls |
Timeline
- Mar 18, 2026 CVE Published
- Apr 24, 2026 Distribution Patch
- Apr 24, 2026 Distribution Patch
- Apr 24, 2026 Security Advisory
- Apr 24, 2026 Security Advisory
- Apr 24, 2026 Security Advisory
- Apr 24, 2026 Security Advisory
- Apr 24, 2026 Security Advisory
- Apr 24, 2026 Security Advisory
- Apr 24, 2026 Security Advisory
- Apr 24, 2026 Security Advisory
- Apr 24, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:4943 advisory
- https://access.redhat.com/products/red-hat-update-infrastructure advisory
- https://access.redhat.com/security/cve/CVE-2025-11187 advisory
- https://access.redhat.com/security/cve/CVE-2025-12084 advisory
- https://access.redhat.com/security/cve/CVE-2025-13836 advisory
- https://access.redhat.com/security/cve/CVE-2025-14104 advisory
- https://access.redhat.com/security/cve/CVE-2025-14831 advisory
- https://access.redhat.com/security/cve/CVE-2025-15281 advisory
- https://access.redhat.com/security/cve/CVE-2025-15366 advisory
- https://access.redhat.com/security/cve/CVE-2025-15367 advisory
- https://access.redhat.com/security/cve/CVE-2025-15467 advisory
- https://access.redhat.com/security/cve/CVE-2025-15468 advisory
- https://access.redhat.com/security/cve/CVE-2025-15469 advisory
- https://access.redhat.com/security/cve/CVE-2025-61726 advisory
- https://access.redhat.com/security/cve/CVE-2025-66199 advisory
- https://access.redhat.com/security/cve/CVE-2025-68160 advisory
- https://access.redhat.com/security/cve/CVE-2025-69418 advisory
- https://access.redhat.com/security/cve/CVE-2025-69419 advisory
- https://access.redhat.com/security/cve/CVE-2025-69420 advisory
- https://access.redhat.com/security/cve/CVE-2025-69421 advisory
…and 154 more