CVE-2026-49821

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Source
https://cve.org/CVERecord?id=CVE-2026-49821
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49821.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-49821
Aliases
Downstream
Related
Published
2026-06-10T17:21:48.470Z
Modified
2026-07-31T18:30:49.818149345Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration
Details

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, Fission's buildermgr controller processed Package CRDs without verifying that Package.spec.environment.namespace matched Package.metadata.namespace. This issue has been patched in version 1.24.0.

Database specific 
{
    "cwe_ids": [
        "CWE-441",
        "CWE-862"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49821.json"
}
References

Affected packages

Git / github.com/fission/fission

Affected ranges

Type
GIT
Repo
https://github.com/fission/fission
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ce617120c41b9e4a51d577f81b441238264e88fd
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.24.0"
        }
    ]
}

Affected versions

0.*
0.10.0
0.3.0
0.3.0-rc
0.4.0
0.4.0rc
0.4.1
0.6.0
0.6.1
0.7.2
1.*
1.0-rc1
1.13.0
1.13.1
1.14.0
1.14.1
1.3.0
1.6.0
1.7.0
1.7.0-rc.1
1.7.0-rc.2
1.7.1
1.8.0
Other
alpha20170124
kubecon
latest
nightly20170621
nightly20170705
v0.*
v0.2.0-20170901
v0.2.1
v1.*
v1.13.0
v1.13.1
v1.14.0
v1.14.1
v1.15.0
v1.15.0-rc1
v1.15.0-rc2
v1.15.1
v1.16.0
v1.16.0-rc1
v1.16.0-rc2
v1.17.0
v1.17.0-rc1
v1.17.0-rc2
v1.18.0
v1.18.0-rc1
v1.18.0-rc2
v1.19.0
v1.19.0-rc1
v1.19.0-rc2
v1.20.0
v1.20.0-rc1
v1.20.0-rc2
v1.20.1
v1.20.2
v1.20.3
v1.20.4
v1.20.5
v1.21.0
v1.21.0-rc1
v1.21.0-rc2
v1.22.0
v1.22.0-rc1
v1.22.0-rc2
v1.23.0
v1.23.0-rc1
v1.6.0
v1.7.0
v1.7.0-rc.1
v1.7.0-rc.2
v1.7.1
v1.8.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49821.json"