Linux Distros Unpatched Vulnerability : CVE-2026-43501

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve maclen headroom when recompressed SRH grows ipv6rplsrhrcv decompresses a...

Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50280)

The remote Oracle Linux 8 / 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-50280 advisory. - ptrace: slightly saner 'getdumpable' logic Linus Torvalds Orabug: 39391447 CVE-2026-46333 - nfsd: fix heap overflow in NFSv4.0 LOCK replay cache Jeff...

RockyLinux 10 : osbuild-composer (RLSA-2026:13643)

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:13643 advisory. net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 Tenable has extracted the preceding description block directly from the RockyLinux...

Linux Distros Unpatched Vulnerability : CVE-2026-33376

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses specifying a mask explicitly are not affected; to mitigate...

RockyLinux 9 : image-builder (RLSA-2026:13671)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:13671 advisory. net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 Tenable has extracted the preceding description block directly from the RockyLinux...

GHSA-CQP8-FCVH-X7R3 Pydantic AI: SSRF cloud-metadata blocklist bypass via IPv4-mapped IPv6 (Incomplete fix of CVE-2026-25580)

Summary When an application using Pydantic AI opts a URL into forcedownload='allow-local' which disables the default block on private/internal IPs, the cloud-metadata blocklist could be bypassed by encoding the metadata IP in an IPv6 transition form IPv4-mapped IPv6, 6to4, or NAT64. Dual-stack an...

RLSA-2026:13643 Important: osbuild-composer security update

A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building images for local usage, it can also upload images directly to cloud. It is compatible with composer-cli and cockpit-composer clients. Security Fixes: net/url:...

image-builder security update

An update is available for image-builder. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list A local binary for building customized OS artifacts such as VM images...

osbuild-composer security update

An update is available for osbuild-composer. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list A service for building customized OS artifacts, such as VM images a...

image-builder security update

An update is available for image-builder. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list A local binary for building customized OS artifacts such as VM images a...

RLSA-2026:8456 Important: osbuild-composer security update

A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building images for local usage, it can also upload images directly to cloud. It is compatible with composer-cli and cockpit-composer clients. Security Fixes: net/url:...

CVE-2026-43501

A flaw was found in the Linux kernel. A local attacker can exploit an out-of-bounds write vulnerability when the kernel recomputes an IPv6 Source Routing Header SRH. This issue occurs because insufficient headroom is reserved during the recompression process, leading to memory corruption...

CVE-2026-43501

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve maclen headroom when recompressed SRH grows ipv6rplsrhrcv decompresses an RFC 6554 Source Routing Header, swaps the next segment into ipv6hdr-daddr, recompresses, then pulls the old header and pushes the new on...

CVE-2026-43501

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve maclen headroom when recompressed SRH grows ipv6rplsrhrcv decompresses an RFC 6554 Source Routing Header, swaps the next segment into ipv6hdr-daddr, recompresses, then pulls the old header and pushes the new on...

UBUNTU-CVE-2026-43501

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve maclen headroom when recompressed SRH grows ipv6rplsrhrcv decompresses an RFC 6554 Source Routing Header, swaps the next segment into ipv6hdr-daddr, recompresses, then pulls the old header and pushes the new on...

EUVD-2026-31276

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve maclen headroom when recompressed SRH grows ipv6rplsrhrcv decompresses an RFC 6554 Source Routing Header, swaps the next segment into ipv6hdr-daddr, recompresses, then pulls the old header and pushes the new on...

CVE-2026-43501 ipv6: rpl: reserve mac_len headroom when recompressed SRH grows

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve maclen headroom when recompressed SRH grows ipv6rplsrhrcv decompresses an RFC 6554 Source Routing Header, swaps the next segment into ipv6hdr-daddr, recompresses, then pulls the old header and pushes the new on...

PT-2026-42457

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds write issue exists in the Linux kernel when recomputing an IPv6 Source Routing Header SRH. The ipv6 rpl srh rcv function decompresses an RFC 6554 SRH, swaps the next...

net/url: Incorrect parsing of IPv6 host literals in net/url

The Go standard library function net/url.Parse insufficiently validated the host/authority component and accepted some invalid URLs by effectively treating garbage before an IP-literal as ignorable. The function should have rejected this as invalid...

Important: Red Hat Security Advisory: osbuild-composer security update

An update for osbuild-composer is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...