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CVE-2026-39821

CVE

Threat entity extracted from intelligence sources

Frequency
13
occurrences
First Seen
June 15, 2026
Last Seen
October 6, 2026
API
Exploited in Wild
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Ransomware Use
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Public Exploits
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Attack Vector
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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

A significant authorization bypass vulnerability (CVE-2026-33186) has been identified in multiple SUSE Elemental systems, including the elemental-system-agent, elemental-toolkit, and elemental-register. This flaw arises from improper validation of the HTTP/2 path pseudo-header, allowing unauthorized...

An important security update for azure-storage-azcopy has been released, addressing two critical vulnerabilities: CVE-2026-39821 and CVE-2026-56852. CVE-2026-39821 allows for validation bypass and privilege escalation due to improper handling of Punycode-encoded labels, while CVE-2026-56852 can lead...

SUSE has released an important update for azure-storage-azcopy addressing several vulnerabilities. The update includes fixes for CVE-2025-47907, CVE-2026-33186, CVE-2026-33814, CVE-2026-34986, and CVE-2026-39821. Notably, CVE-2026-33186 has a CVSS score of 9.1, indicating a high severity due to an a...

Oracle has released important security advisories for git-lfs affecting Oracle Linux 8 and 9. Both advisories address CVE-2026-39821, which was published on May 22, 2026. The vulnerability involves the vendored golang.org/x/net/idna ToUnicode function incorrectly accepting all-ASCII xn-- labels. Thi...

Public Exploits

Checking GitHub for proof-of-concept code…

Related Articles (13)

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