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SECURITY: uv, prek, tealdeer, nickel, nickel-lsp, tuicr, biome, teamtype, probe-rs, sccache, railway: lock rustls-webpki 0.103.16 + webpki-roots 1.0.10 (CVE-2026-111943) - #953
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bryan-minimal merged 2 commits intoOct 21, 2026
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…pki 0.103.16 + webpki-roots 1.0.10 (CVE-2026-111943) uv, prek, tealdeer, nickel, nickel-lsp, tuicr, biome, teamtype, probe-rs, sccache, railway compile in rustls-webpki < 0.103.16 (no distrust list for the eight compromised eMudhra intermediates, RUSTSEC-2026-0382) and a webpki-roots / webpki-root-certs < 1.0.10 that still bundles emSign ECC Root CA - G3 (RUSTSEC-2026-0383). No upstream release locks both fixed versions yet (rustls-webpki 0.103.16 was published 2026-10-20 08:58 UTC). Each package now carries cve-2026-111943-webpki-lock.patch, a Cargo.lock diff applied by name with `patch -Np1` before `cargo build --locked`, plus a fail-closed grep that the fixed versions are locked and no pre-fix 0.103.x / 1.0.x remains. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Review comments at @packages/teamtype/build.sh:
- Around line 17-25: Update the lockfile validation around the
rustls-webpki/webpki-roots/webpki-root-certs version grep so it also rejects
every 0.102.x release, including the version resolved through iroh. Preserve the
existing rejection of pre-0.103.16 0.103.x and 1.0.x releases, ensuring the
build fails closed until iroh uses a fixed rustls-webpki release.
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📒 Files selected for processing: 33
packages/biome/build.nclpackages/biome/build.shpackages/biome/cve-2026-111943-webpki-lock.patchpackages/nickel-lsp/build.nclpackages/nickel-lsp/build.shpackages/nickel-lsp/cve-2026-111943-webpki-lock.patchpackages/nickel/build.nclpackages/nickel/build.shpackages/nickel/cve-2026-111943-webpki-lock.patchpackages/prek/build.nclpackages/prek/build.shpackages/prek/cve-2026-111943-webpki-lock.patchpackages/probe-rs/build.nclpackages/probe-rs/build.shpackages/probe-rs/cve-2026-111943-webpki-lock.patchpackages/railway/build.nclpackages/railway/build.shpackages/railway/cve-2026-111943-webpki-lock.patchpackages/sccache/build.nclpackages/sccache/build.shpackages/sccache/cve-2026-111943-webpki-lock.patchpackages/tealdeer/build.nclpackages/tealdeer/build.shpackages/tealdeer/cve-2026-111943-webpki-lock.patchpackages/teamtype/build.nclpackages/teamtype/build.shpackages/teamtype/cve-2026-111943-webpki-lock.patchpackages/tuicr/build.nclpackages/tuicr/build.shpackages/tuicr/cve-2026-111943-webpki-lock.patchpackages/uv/build.nclpackages/uv/build.shpackages/uv/cve-2026-111943-webpki-lock.patch
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Bump uv 0.12.23 -> 0.13.4 (clears GHSA-hq85-5cpj-mr62) and keep the CVE-2026-111943 lock pin. 0.13.4's own Cargo.lock already has webpki-root-certs 1.0.10 but still locks rustls-webpki 0.103.14 (RUSTSEC-2026-0382 needs >= 0.103.16), so the lock patch is regenerated against the pristine 0.13.4 lock and now moves only rustls-webpki (version + checksum). The `patch` build dep and the fail-closed build.sh guard stay. Supersedes the bot PR #962, which dropped the patch Local and the `patch` dep from a stale pre-#953 recipe snapshot while build.sh still applied it (pkgmgr fix: gominimal/pkgmgr-rs#1030). Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
This was referenced Oct 26, 2026
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What
CVE-2026-111943. The private keys of eight eMudhra intermediate CAs are recoverable from their public certificates (Mozilla bug 2083449). The Rust fixes:
rustls-webpki0.103.16. It addsDISTRUSTED_SPKIS(the 8 intermediates: EM{DV,EV,OV}TLSCAG3{B,C} and EMOVCSCAG3{B,C}). Any path through them fails withCertDistrusted, whatever the trust store holds.webpki-roots/webpki-root-certs1.0.10. These drop emSign ECC Root CA - G3 from the bundle.I diffed the crates to confirm. 1.0.10 removes only G3; emSign Root CA - C1, ECC C3 and G1 stay, which is upstream's choice.
These 11 packages compile a bundled webpki root set that the binary can use by default. Each also has a
rustls-webpkiolder than 0.103.16:No upstream release fixes this yet.
rustls-webpki0.103.16 was published 2026-10-20 08:58 UTC. I checked the Cargo.lock at every project's latest tag. uv 0.13.4 has webpki-root-certs 1.0.10 but rustls-webpki 0.103.14. prek 0.5.6, nickel 1.18.0, sccache 0.18.0 and railway 5.71.0 are all still on < 0.103.16 and < 1.0.10.How
Each package gets
cve-2026-111943-webpki-lock.patch, a diff against upstream's committedCargo.lock. The lock change is committed here, never resolved at build time (AGENTS.md reproducibility).build.shchanges:patch -Np1 -i ./cve-2026-111943-webpki-lock.patch, by name.patchis added as a build dep.rustls-webpki0.103.16 is in the lock and norustls-webpki0.103.0–15 orwebpki-roots/webpki-root-certs1.0.0–9 remains.cargo build→cargo build --locked, so cargo builds exactly the patched lock and does not re-resolve it.How the patches were made:
versionandchecksumlines plus the"name version"back-references. Checksums come from the crates.io index.aws-lc-rs≥ 1.18, which rustls-webpki 0.103.16 requires whenever its aws-lc-rs feature is on. Socargo update -p aws-lc-rs -p aws-lc-sys -p rustls-webpki@0.103.13resolved those three and nothing else.cargo update -p rustls@0.23.10 -p hyper-rustls -p webpki-roots@0.26.2 -p rustls-webpki@0.102.4 -p webpki-roots@1.0.5moved that stack.windows-sysback-reference. That flip doesn't affect Linux.cargocommand was a resolve (update/metadata), never a compile. Each ran from outside the downloaded tree, so the tree's.cargo/config.tomlandrust-toolchain.tomlwere not read.When bumping: a version bump that keeps the patch fails at
patch, so it can't silently ship the old lock. Drop the patch on the first upstream release whose Cargo.lock already has 0.103.16 / 1.0.10. If that release is still unfixed, regenerate the patch.Verified, and how
url+sha256in its build.ncl, and the sha256 matched.patch -Np1to the pristineCargo.lock, and the result is byte-identical to the edited lock.cargo metadata --lockedsucceeds on every patched tree. That is the checkcargo build --lockedmakes before compiling.webpki-root-certs1.0.9 (exit 1, "pre-fix … still in Cargo.lock").MINIMAL_SCIENCE_MODE=1 mip dump --packages --arch amd64, diffed against main, changes 15 spec hashes. They are the 11 above plus their dependentsdev-language-servers,diffoscope,emacs-config-dev1,httpie.nickel formatleaves every build.ncl unchanged, andsh -npasses on every build.sh.Unverified
minimal buildandminimal-checkare the build verification.Unresolved (reviewer)
rustls-webpki0.102.8. The 0.102 line has no fix, so a lock edit can't move it.webpki::typesre-exports,webpki::Error, and parsing/verifying iroh's own self-signed libp2p-style peer certificates (tls/certificate.rs,tls/verifier.rs).magicsock.rs:1847:RootCertStore::from_iter(webpki_roots::TLS_SERVER_ROOTS)→with_root_certificates.iroh-relay client/tls.rs:78: the same pattern.-p rustls --precise 0.23.46also moves zeroize 1.7 → 1.9.1).Runtime mitigation (SOP, until this lands)
These switches select the system store. With the ca-certificates fix (#948), that store no longer holds the emSign roots.
--system-certsorUV_SYSTEM_CERTS=1(UV_NATIVE_TLSis deprecated).PREK_NATIVE_TLS=1.tls_backend = "rustls-with-native-roots"under[updates]in its config. The default isrustls-with-webpki-roots, the first entry in itsSUPPORTED_TLS_BACKENDS, because our build doesn't enable thenative-tlsfeature.None of these restores the intermediate distrust that rustls-webpki 0.103.16 adds. Only the rebuild does.
Related: #948 (ca-certificates), #949 (JDK), #946 (node), #951 (bun), #950 (python/pip).
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