AEGLIX vulnerability intelligence
CVE-2026-109841
MEDIUM · CVSS 5.9 · Analyzed
Published: 2026-10-15 · Updated: 2026-10-19 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T10:22:45.796318+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
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Vulnerability overview
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.
Patch review priority
Assess exposure and vendor guidance
- No higher-priority signal is available in the current stored evidence.
FIRST EPSS: 0.25% · percentile 16.5 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 5.9 · MEDIUM
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-178
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*
From (inclusive): 7.15.0
Before (exclusive): 7.30.1
cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*
From (inclusive): 8.0.0
Before (exclusive): 8.12.2
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://cna.openjsf.org/security-advisories.html
Vendor Advisory
- https://github.com/nodejs/undici/security/advisories/GHSA-f72v-6w45-q472
Mitigation · Vendor Advisory