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ALSA-2026:71543 — Important: cockpit-image-builder security update

Affected: AlmaLinux:10: cockpit-image-builder

The image-builder-frontend generates custom images suitable for deploying systems or uploading to the cloud. It integrates into Cockpit as a frontend for osbuild.

Security Fix(es):

* fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding (CVE-2026-75899) * fast-uri: fast-uri: Server-side request forgery via malformed IPv6 normalization (CVE-2026-75975) * fast-uri: fast-uri: URI parsing flaw enables server-side request forgery and redirects (CVE-2026-76172) * fast-uri: fast-uri: Authority Injection via Unvalidated Port Serialization (CVE-2026-84292)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

certfr-2026-avi-1233 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre elles permettent à un attaquan…

certfr-2026-avi-1233

CLEANSTART-2026-SR09955 — fast-uri is a URI parser for Node

Affected: CleanStart: langfuse

Security vulnerability affects the langfuse package. fast-uri is a URI parser for Node.

EUVD-2026-358201

fkie_cve-2026-75899

fast-uri is a URI parser for Node.js. It decodes percent escapes in a hostname during parsing and then decodes the parsed hostname a second time during authority recomposition, so a single call to normalize or resolve can turn nested percent-encoded input into a different network destination such as a loopback hostname or address. For example, a doubly encoded host that spells out a loopback name decodes to that live host in one operation, which contradicts RFC 3986 section 2.4 that an implementation must not decode the same string more than once. An application that normalizes or resolves an untrusted HTTP-family URI before outbound routing, redirect validation, or a host-policy check can receive a destination different from the one the original encoded host represented, giving a server-side request forgery and host-policy bypass primitive. This is an incomplete-fix variant of CVE-2026-6322. The affected versions are 2.4.1 up to but not including 2.4.5, 3.1.2 up to but not including 3.1.6, and 4.0.0 up to but not including 4.1.3. The issue is fixed in 2.4.5, 3.1.6, and 4.1.3, which normalize percent escapes once and preserve encoded percent signs. Users should upgrade to a patched version.

GHSA-fph4-wmhf-6fwf — fast-uri vulnerable to server-side request forgery via repeated hostname percent-decoding

Affected: npm: fast-uri

### Impact

`fast-uri` decodes a hostname's percent escapes twice in a single `normalize()` or `resolve()` call: once during parsing and again during authority recomposition. A nested percent-encoded host therefore survives the first decode and is turned into a live destination by the second, so `normalize('http://%256c%256f%2563%2561%256c%2568%256f%2573%2574/')` returns `http://localhost/`. Applications that normalize or resolve an untrusted URI before an SSRF check, redirect validation, or host allowlist can be steered to a different destination, including internal addresses such as loopback or a cloud metadata endpoint, than the encoded input appeared to contain. This is an incomplete-fix variant of CVE-2026-6322, whose encoded-authority-delimiter fix introduced the second decode.

### Patches

Fixed in `fast-uri` 2.4.5, 3.1.6, and 4.1.3.

### Workarounds

Reject untrusted URIs whose host component contains an encoded percent sign (`%25`) before passing them to `normalize()` or `resolve()`.

RHSA-2026:60855 — Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

fast-uri: fast-uri: URI authority bypass due to improper delimiter handling fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding fast-uri: fast-uri: Host confusion via skipped IDN canonicalization fast-uri: fast-uri: Server-side request forgery via malformed IPv6 normalization fast-uri: fast-uri: URI parsing flaw enables server-side request forgery and redirects

RLSA-2026:71543 — Important: cockpit-image-builder security update

Affected: Rocky Linux:10: cockpit-image-builder

The image-builder-frontend generates custom images suitable for deploying systems or uploading to the cloud. It integrates into Cockpit as a frontend for osbuild.

Security Fix(es):

* fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding (CVE-2026-75899)

* fast-uri: fast-uri: Server-side request forgery via malformed IPv6 normalization (CVE-2026-75975)

* fast-uri: fast-uri: URI parsing flaw enables server-side request forgery and redirects (CVE-2026-76172)

* fast-uri: fast-uri: Authority Injection via Unvalidated Port Serialization (CVE-2026-84292)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

UBUNTU-CVE-2026-75899

Affected: Ubuntu:18.04:LTS: node-ajv, Ubuntu:20.04:LTS: node-ajv, Ubuntu:22.04:LTS: node-ajv, Ubuntu:24.04:LTS: node-ajv, Ubuntu:26.04:LTS: node-ajv

WID-SEC-W-2026-3376 — Atlassian Bamboo, Bitbucket, Confluence, Fisheye/Crucible, Jira Software und Jira Service Management: Mehrere Schwachst…

Ein Angreifer kann mehrere Schwachstellen in Atlassian Bamboo, Bitbucket, Confluence, Fisheye/Crucible, Jira Software und Jira Service Management ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, serverseitige Request-Forgery-Angriffe (SSRF) durchzuführen, Cross-Site-Scripting-Angriffe zu starten, sensible Informationen offenzulegen, Daten zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.