CVE-2026-48758

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Source
https://cve.org/CVERecord?id=CVE-2026-48758
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-48758.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-48758
Aliases
Downstream
CGA (4)
CLEANSTART (9)
CLSA (1)
MINI (7)
ROOT (1)
Published
2026-07-14T20:36:28Z
Modified
2026-10-26T02:32:24Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
sigstore-js: DSSE payloadType type-binding failure
Details

sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 3.2.1, the preAuthEncoding function in @sigstore/core uses Node.js ascii encoding when converting the PAE string to bytes, allowing payloadType to be mutated after signing without invalidating the signature and breaking the type-binding guarantee that DSSE is designed to provide. This issue is fixed in version 3.2.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-347"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48758.json"
}
References

Affected packages

Git / github.com/sigstore/sigstore-js

Affected ranges

Type
GIT
Repo
https://github.com/sigstore/sigstore-js
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c1dc7d4778a450787fc72b083f2490ad02b714c6
Fixed
b5aa4f1f8d2db0a9dfa6430fb114d9c2f1c304f7
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "3.2.1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "b5aa4f1f8d2db0a9dfa6430fb114d9c2f1c304f7"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

@sigstore/bundle@1.*
@sigstore/bundle@1.0.0
@sigstore/bundle@1.1.0
@sigstore/bundle@2.*
@sigstore/bundle@2.0.0
@sigstore/bundle@2.1.0
@sigstore/bundle@2.1.1
@sigstore/bundle@2.2.0
@sigstore/bundle@2.3.0
@sigstore/bundle@2.3.1
@sigstore/bundle@2.3.2
@sigstore/bundle@3.*
@sigstore/bundle@3.0.0
@sigstore/bundle@3.1.0
@sigstore/bundle@4.*
@sigstore/bundle@4.0.0
@sigstore/cli@0.*
@sigstore/cli@0.0.2
@sigstore/cli@0.0.3
@sigstore/cli@0.0.4
@sigstore/cli@0.0.5
@sigstore/cli@0.1.0
@sigstore/cli@0.1.1
@sigstore/cli@0.1.2
@sigstore/cli@0.2.0
@sigstore/cli@0.2.1
@sigstore/cli@0.3.0
@sigstore/cli@0.4.0
@sigstore/cli@0.5.0
@sigstore/cli@0.6.0
@sigstore/cli@0.7.0
@sigstore/cli@0.7.1
@sigstore/cli@0.8.0
@sigstore/cli@0.8.1
@sigstore/cli@0.8.2
@sigstore/cli@0.9.0
@sigstore/cli@0.9.1
@sigstore/core@0.*
@sigstore/core@0.1.0
@sigstore/core@0.2.0
@sigstore/core@1.*
@sigstore/core@1.0.0
@sigstore/core@1.1.0
@sigstore/core@2.*
@sigstore/core@2.0.0
@sigstore/core@3.*
@sigstore/core@3.0.0
@sigstore/core@3.2.0
@sigstore/mock@0.*
@sigstore/mock@0.1.0
@sigstore/mock@0.1.1
@sigstore/mock@0.10.0
@sigstore/mock@0.11.0
@sigstore/mock@0.12.0
@sigstore/mock@0.2.0
@sigstore/mock@0.3.0
@sigstore/mock@0.4.0
@sigstore/mock@0.5.0
@sigstore/mock@0.6.0
@sigstore/mock@0.6.1
@sigstore/mock@0.6.2
@sigstore/mock@0.6.3
@sigstore/mock@0.6.4
@sigstore/mock@0.6.5
@sigstore/mock@0.7.0
@sigstore/mock@0.7.1
@sigstore/mock@0.7.2
@sigstore/mock@0.7.3
@sigstore/mock@0.7.4
@sigstore/mock@0.7.5
@sigstore/mock@0.8.0
@sigstore/mock@0.9.0
@sigstore/oci@0.*
@sigstore/oci@0.1.0
@sigstore/oci@0.2.0
@sigstore/oci@0.3.0
@sigstore/oci@0.3.1
@sigstore/oci@0.3.2
@sigstore/oci@0.3.3
@sigstore/oci@0.3.4
@sigstore/oci@0.3.5
@sigstore/oci@0.3.6
@sigstore/oci@0.3.7
@sigstore/oci@0.4.0
@sigstore/oci@0.5.0
@sigstore/oci@0.6.0
@sigstore/oci@0.6.1
@sigstore/rekor-types@0.*
@sigstore/rekor-types@0.0.2
@sigstore/rekor-types@0.0.3
@sigstore/rekor-types@1.*
@sigstore/rekor-types@1.0.0
@sigstore/rekor-types@2.*
@sigstore/rekor-types@2.0.0
@sigstore/rekor-types@3.*
@sigstore/rekor-types@3.0.0
@sigstore/rekor-types@4.*
@sigstore/rekor-types@4.0.0
@sigstore/sign@1.*
@sigstore/sign@1.0.0
@sigstore/sign@2.*
@sigstore/sign@2.0.0
@sigstore/sign@2.1.0
@sigstore/sign@2.2.0
@sigstore/sign@2.2.1
@sigstore/sign@2.2.2
@sigstore/sign@2.2.3
@sigstore/sign@2.3.0
@sigstore/sign@2.3.1
@sigstore/sign@2.3.2
@sigstore/sign@3.*
@sigstore/sign@3.0.0
@sigstore/sign@3.1.0
@sigstore/sign@4.*
@sigstore/sign@4.0.0
@sigstore/sign@4.0.1
@sigstore/sign@4.1.1
@sigstore/tuf@1.*
@sigstore/tuf@1.0.0
@sigstore/tuf@1.0.1
@sigstore/tuf@1.0.2
@sigstore/tuf@1.0.3
@sigstore/tuf@2.*
@sigstore/tuf@2.0.0
@sigstore/tuf@2.1.0
@sigstore/tuf@2.2.0
@sigstore/tuf@2.3.0
@sigstore/tuf@2.3.1
@sigstore/tuf@2.3.2
@sigstore/tuf@2.3.3
@sigstore/tuf@2.3.4
@sigstore/tuf@3.*
@sigstore/tuf@3.0.0
@sigstore/tuf@3.1.0
@sigstore/tuf@3.1.1
@sigstore/tuf@4.*
@sigstore/tuf@4.0.0
@sigstore/tuf@4.0.2
@sigstore/verify@0.*
@sigstore/verify@0.1.0
@sigstore/verify@1.*
@sigstore/verify@1.0.0
@sigstore/verify@1.1.0
@sigstore/verify@1.1.1
@sigstore/verify@1.2.0
@sigstore/verify@1.2.1
@sigstore/verify@2.*
@sigstore/verify@2.0.0
@sigstore/verify@2.1.0
@sigstore/verify@2.1.1
@sigstore/verify@3.*
@sigstore/verify@3.0.0
sigstore@1.*
sigstore@1.5.1
sigstore@1.5.2
sigstore@1.6.0
sigstore@1.7.0
sigstore@1.8.0
sigstore@1.9.0
sigstore@2.*
sigstore@2.0.0
sigstore@2.1.0
sigstore@2.2.0
sigstore@2.2.1
sigstore@2.2.2
sigstore@2.3.0
sigstore@2.3.1
sigstore@3.*
sigstore@3.0.0
sigstore@3.1.0
sigstore@4.*
sigstore@4.0.0
sigstore@4.1.0
v0.*
v0.0.1-alpha.5
v0.1.0
v0.1.1
v0.2.0
v0.3.0
v0.4.0
v1.*
v1.0.0
v1.0.0-beta.1
v1.1.0
v1.1.1
v1.2.0
v1.3.0
v1.3.1
v1.3.2
v1.4.0
v1.5.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-48758.json"