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CVE-2026-49823
7.7 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Changed (C)
- Confidentiality (C): High (H)
- Integrity (I): None (N)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): None (N)
Activity log
- Created suggestion
Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook
Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a Fission Function spec carries three reference types — Secret, ConfigMap, and Package. The first two were namespace-validated by the admission webhook; PackageRef.Namespace was not. This issue has been patched in version 1.24.0.
References
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https://github.com/fission/fission/security/advisories/GHSA-3r8v-2xmj-5c39 x_refsource_CONFIRM
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https://github.com/fission/fission/pull/3389 x_refsource_MISC
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https://github.com/fission/fission/releases/tag/v1.24.0 x_refsource_MISC
Affected products
fission
- ==< 1.24.0
Package maintainers
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@NeverBehave Xinhao Luo <i@never.pet>