PT-2026-25777 · Spinnaker · Spinnaker

Codewobbler + 1 · Published 2026-01-05 · Updated 2026-03-20 · CVE-2026-25534

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L

Name of the Vulnerable Software and Affected Versions Spinnaker versions prior to 2025.4.1 Spinnaker versions prior to 2025.3.1 Spinnaker versions prior to 2025.2.4 Spinnaker version 2026.0.0

Description Spinnaker updated the URL validation logic for user input to sanitize URLs for clouddriver. However, Java URL objects do not correctly handle underscores during parsing, leading to a bypass of a previous issue. This impacts both clouddriver and Orca fromUrl expression handling. The issue stems from a flaw in how Java URL objects process underscores within URLs, effectively circumventing the intended URL validation.

Recommendations Versions prior to 2025.4.1 should be updated to version 2025.4.1 or later. Versions prior to 2025.3.1 should be updated to version 2025.3.1 or later. Versions prior to 2025.2.4 should be updated to version 2025.2.4 or later. Version 2026.0.0 contains a fix for this vulnerability.

Exploit

Fix

SSRF

RCE

Weakness Enumeration

CWE-918

CWE-523

CWE-20

Related Identifiers

CVE-2026-25534

GHSA-8R8J-GFHG-FW38

GHSA-VRJC-Q2FH-6X9H

Affected Products

Spinnaker

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25534.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-25534 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-25534 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-61916 · Security Note
• https://osv.dev/vulnerability/GHSA-vrjc-q2fh-6x9h · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-8r8j-gfhg-fw38 · Vendor Advisory
• https://github.com/spinnaker/spinnaker/commit/7c4737906239a958a468e843239c6785b03d0eda · Note
• https://github.com/spinnaker/spinnaker/security/advisories/GHSA-8r8j-gfhg-fw38 · Note
• https://github.com/spinnaker/spinnaker/security/advisories/GHSA-vrjc-q2fh-6x9h · Note
• https://github.com/spinnaker/spinnaker · Note
• https://twitter.com/0dayPublishing/status/2033965129256055039 · Twitter Post
• https://twitter.com/cyberbivash/status/2033991038491062300 · Twitter Post
• https://twitter.com/CveFindCom/status/2033977343383916987 · Twitter Post
• https://twitter.com/TheHackerWire/status/2033981526975910113 · Twitter Post
• https://twitter.com/pulsepatchio/status/2035004392915468536 · Twitter Post