[dependabot]

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Bumps undici from 7.25.0 to 7.30.1.

Release notes

Sourced from undici's releases.

v7.30.1

Security fixes

High severity

Denial of service via TLS 1.2 certificate-changing renegotiation

CVE-2026-87018 · GHSA-qrxm-fqhp-jwvm

A malicious or compromised HTTPS server could crash the Node.js process by initiating TLS 1.2 renegotiation and presenting a different, CA-trusted certificate whose hostname did not match the requested host. The resulting socket error reached an assertion in undici's HTTP/1.1 and HTTP/2 connection handling. This release handles post-connect certificate errors without terminating the process.

TLS certificate validation bypass through dropped Agent options

CVE-2026-109383 · GHSA-2m5v-pch6-74hx

Agent used a JSON-based clone for constructor options, which silently removed function-valued TLS options such as checkServerIdentity. Applications relying on custom certificate or public-key verification could therefore accept a certificate that the callback was intended to reject. This release preserves TLS options when creating per-origin dispatchers.

Cache poisoning and cross-user disclosure through cross-origin redirects

CVE-2026-109829 · GHSA-4w7w-5xrc-9h26

When an originless Agent combined redirect and shared-cache interceptors as compose(redirect(), cache()), a response from a cross-origin redirect could be stored under the original URL. This could allow persistent cache poisoning or disclosure of user-specific responses to later callers. This release verifies the response origin before caching and preserves redirect-hop cache-control policy.

Denial of service through excessive Content-Encoding values

CVE-2026-109869 · GHSA-xjj6-f33q-929c

A malicious HTTP server could crash the Node.js process by returning more than five content codings and closing the connection before sending the body. Although fetch() rejected the response, an error from an orphaned internal stream could remain unhandled. This release validates the content-encoding chain before creating the body stream and aborts oversized chains safely.

Medium severity

Denial of service through the decompress interceptor

CVE-2026-87029 · GHSA-55wc-3pg8-jfw6

An exception thrown by a downstream response handler from an asynchronous decompression callback could escape as an uncaught exception. A server could trigger this when decompress was composed with a handler such as dump with a size limit. This release converts downstream handler exceptions into per-request errors.

Subresource Integrity bypass with non-lowercase algorithm tokens

CVE-2026-109841 · GHSA-f72v-6w45-q472

fetch() treated valid mixed-case or uppercase SRI algorithm tokens, such as SHA256, as unknown and could accept a response whose body did not match the configured digest. This release normalizes algorithm tokens before validation and digest selection.

Denial of service through unbounded EventSource parser state

CVE-2026-109924 · GHSA-4qv8-2p9j-2685

A malicious Server-Sent Events endpoint could exhaust process memory by sending many tiny data: fields without completing an event, or by splitting an unfinished line across many chunks. This release bounds retained EventSource parser state, including field counts, buffered chunks, unfinished-line length, and retained field data.

Denial of service through unbounded automatic WebSocket PONG buffering

... (truncated)

Commits

• 7507102 Bumped v7.30.1 (#6022)
• 7d60c7b [v7.x] fix(cookies): backport #5663, #5808 and #5832 (#6019)
• 0227d5d fix: avoid unbounded recursion in Set-Cookie attribute parser (#5757) (#5997)
• 5394462 fix(websocket): bound automatic PONG writes under backpressure
• 2991627 fix(eventsource): bound retained SSE parser state
• 18bc8a1 fix(sri): accept non-lowercase algorithm tokens
• 63cba77 fix(decompress): converge downstream handler throws to per-request errors
• 07ded49 fix(fetch): abort excessive content encoding responses
• b20b82a fix(cache): prevent cross-origin redirect cache confusion
• 04cb74b fix: preserve Agent connection options
• Additional commits viewable in compare view

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[monoscope-bot]

Monoscope production impact · Coverage unknown

Project 87576849-4941-49d3-a15d-680fef88a1a8 · reviewed 75e0649f7400d267776de5d0ff63552c69016cd5 · advisory

Evidence window (UTC): 2026-10-19 10:54:25.835723968 UTC → 2026-10-26 10:54:25.835723968 UTC

Coverage: Evidence is capped at 20 service/environment groups, monitors and dashboard queries. Telemetry describes the mapped service, not a proven changed-path or deployed-revision match. Monitor and dashboard references are project-wide; their relationship to the mapped service is unverified. The dependency graph and package manifest are not provided, so it is unverified whether this development-only lockfile entry affects production artifacts. No CI, build, compatibility, or deployed-revision evidence is provided for the undici upgrade. Available telemetry is not proven to correspond to the changed dependency or deployed revision.

Review history and settings

[tonyalaribe]

Already on master via #734.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.