undici vulnerable to Subresource Integrity bypass via non-lowercase algorithm tokens
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| undici | undici | unaffected |
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Configuration 1 [-]
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No data.
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| Undici | Undici |
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| Source | ID | Title |
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Github GHSA |
GHSA-f72v-6w45-q472 | undici vulnerable to Subresource Integrity bypass via non-lowercase algorithm tokens |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.252% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Nodejs
Nodejs undici |
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| CPEs | cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:* | |
| Vendors & Products |
Nodejs
Nodejs undici |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Undici
Undici undici |
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| Vendors & Products |
Undici
Undici undici |
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|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-354 | |
| References |
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| Metrics |
threat_severity
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threat_severity
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| Type | Values Removed | Values Added |
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| Description | undici is an HTTP client library for Node.js. In versions 7.15.0 through 7.30.0 and 8.0.0 through 8.12.1, its fetch() implementation verifies Subresource Integrity metadata by matching the algorithm token against a lowercase-only set, even though the SRI specification defines the token by its ASCII-lowercase form, so a valid but non-lowercase token such as an uppercase or mixed-case SHA256 is treated as unknown and skipped. When no recognized algorithm remains, undici treats the integrity list as empty and accepts the response, so a server returning a body that does not match the pinned digest passes the check. An attacker who controls only the response body can therefore deliver attacker-controlled bytes to an application that pinned a valid uppercase or mixed-case SRI token, with no integrity error, affecting response integrity only. The issue is fixed in undici 7.30.1 and 8.12.2, which normalize the algorithm token to ASCII lowercase before validation, and users should upgrade to one of those versions or later. As a workaround, use lowercase algorithm tokens such as sha256, sha384, or sha512 in integrity metadata. | |
| Title | undici vulnerable to Subresource Integrity bypass via non-lowercase algorithm tokens | |
| Weaknesses | CWE-178 | |
| References |
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| Metrics |
cvssV3_1
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