https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-06T11:20:18.151980+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-39821 CVE-2026-39821 — Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna 2026-10-06T11:20:18.359313+00:00

Affected: Go standard library net/http, Go standard library net/http/internal/http2, golang.org/x/net/idna, Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9, Red Hat Ansible Automation Platform 2.6 for RHEL 10, Red Hat Ansible Automation Platform 2.6 for RHEL 9, Red Hat Ansible Automation Platform 2.7 for RHEL 10, Red Hat Ansible Automation Platform 2.7 for RHEL 9, Red Hat Enterprise Linux 10 and 139 more

The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode("xn--example-.com") incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege escalation in programs using the idna package. For example, a program which performs privilege checks on the ASCII hostname may reject "example.com" but permit "xn--example-.com". If that program subsequently converts the ASCII hostname to Unicode, it will inadvertently permits access to the Unicode name "example.com".

 https://vulnerability.circl.lu/vuln/ghsa-w5pp-99ch-qj29 GHSA-w5pp-99ch-qj29 — go-git: Malformed Git object data may cause panics or resource exhaustion 2026-10-06T11:20:18.359909+00:00

Affected: Go: github.com/go-git/go-git/v5, Go: github.com/go-git/go-git/v6

### Impact Several denial-of-service issues were identified in `go-git` when parsing maliciously crafted Git repository data.

An attacker may craft a malicious `.pack`, `.idx` or loose objects that causes an application using an affected version of `go-git` to panic or consume excessive resources.

This can lead to denial of service in applications that use `go-git` to clone, fetch, open, or otherwise process untrusted repositories or Git object data.

Exploitation requires the ability to alter read-only files such as `.pack` or `.idx` from the local repository's `.git/objects/pack/` directory. Alternatively, the user would need to be interacting with a malicious remote server, which is not recommended and exposes users to a broader class of security risks beyond this issue.

### Patches Users should upgrade to a patched version in order to mitigate this vulnerability. Versions prior to `v5` are likely to be affected, users are recommended to upgrade to a supported `go-git` version.

### Credits go-git thanks @kodareef5, @AyushParkara and @N0zoM1z0 for reporting this in four separate reports. 🙇