CVE-2026-49455

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Source
https://cve.org/CVERecord?id=CVE-2026-49455
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49455.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-49455
Aliases
Published
2026-09-03T18:15:42Z
Modified
2026-10-28T02:30:29Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS Calculator
Summary
Waku: Cross-Origin CSRF on RSC Server Action Dispatch
Details

Waku is the minimal React framework. Prior to version 1.0.0-beta.1, Waku's RSC request dispatcher invokes server actions without validating the request's Origin (or Sec-Fetch-Site) header. A cross-origin web attacker can therefore cause a victim browser to issue an authenticated POST to a registered server action endpoint using a CORS-safelisted content type (text/plain), which does not trigger a preflight. Any state-mutating server action that the application exposes via 'use server' can be invoked with the victim's cookies attached. This issue has been patched in version 1.0.0-beta.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-352"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49455.json"
}
References

Affected packages

Git / github.com/wakujs/waku

Affected ranges

Type
GIT
Repo
https://github.com/wakujs/waku
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5a5f4a48ba18c004d4552cbee15d0e3e1f8ea371
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.0.0-beta.1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "original_tag": "v1.0.0-beta.1",
            "range": [
                {
                    "fixed": "5a5f4a48ba18c004d4552cbee15d0e3e1f8ea371"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.0.0-beta.1"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.1.2
v0.1.3
v0.10.0
v0.11.0
v0.11.1
v0.11.2
v0.11.3
v0.12.0
v0.12.1
v0.13.0
v0.14.0
v0.15.0
v0.15.0+v0.5.2
v0.15.1
v0.16.0
v0.17.0
v0.17.0+v0.6.2
v0.17.1
v0.17.1+v0.6.4
v0.17.1+v0.6.5
v0.18.0
v0.18.0-alpha.0
v0.18.0-alpha.1
v0.18.0-beta.0
v0.18.1
v0.19.0
v0.19.0-alpha.0
v0.19.0-alpha.1
v0.19.0-alpha.2
v0.19.0-beta.0
v0.19.0-beta.1
v0.19.0-beta.2
v0.19.0-beta.3
v0.19.1
v0.19.2
v0.19.3
v0.19.4
v0.2.0
v0.20.0
v0.20.0-alpha.0
v0.20.0-alpha.1
v0.20.0-alpha.2
v0.20.0-beta.0
v0.20.0-beta.1
v0.20.0-beta.2
v0.20.0-beta.3
v0.20.1
v0.20.1-alpha.0
v0.20.2
v0.20.2-alpha.0
v0.20.2-alpha.1
v0.21.0
v0.21.0-alpha.0
v0.21.0-alpha.1
v0.21.0-alpha.2
v0.21.0-beta.0
v0.21.0-beta.1
v0.21.0-beta.2
v0.21.0-beta.3
v0.21.0-beta.4
v0.21.0-beta.5
v0.21.1
v0.21.10
v0.21.11
v0.21.12
v0.21.13
v0.21.14
v0.21.15
v0.21.16
v0.21.17
v0.21.18
v0.21.19
v0.21.2
v0.21.20
v0.21.21
v0.21.22
v0.21.23
v0.21.24
v0.21.3
v0.21.3+v0.10.1
v0.21.4
v0.21.4+v0.10.3
v0.21.5
v0.21.6
v0.21.7
v0.21.8
v0.21.9
v0.22.0
v0.22.1
v0.22.2
v0.22.3
v0.22.4
v0.23.0
v0.23.1
v0.23.2
v0.23.3
v0.23.4
v0.23.5
v0.23.6
v0.23.7
v0.24.0
v0.24.0-alpha.0
v0.25.0
v0.25.0-alpha.0
v0.25.0-alpha.1
v0.26.0
v0.26.0-alpha.0
v0.26.0-alpha.1
v0.26.0-alpha.2
v0.26.1
v0.27.0
v0.27.1
v0.27.2
v0.27.3
v0.27.4
v0.27.5
v0.3.0
v0.4.0
v0.5.0
v0.6.0
v0.6.1
v0.7.0
v0.7.1
v0.7.2
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.9.0
v0.9.1
v0.9.2
v0.9.3
v0.9.4
v1.*
v1.0.0-alpha.0
v1.0.0-alpha.1
v1.0.0-alpha.10
v1.0.0-alpha.2
v1.0.0-alpha.3
v1.0.0-alpha.4
v1.0.0-alpha.5
v1.0.0-alpha.6
v1.0.0-alpha.7
v1.0.0-alpha.8
v1.0.0-alpha.9
v1.0.0-beta.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49455.json"