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cargo / reactor-webrtc-sys / 0.22.1

reactor-webrtc-sys 0.22.1

bitbison: flagged, behavior flagged, dependencies clean, posture not checked, pipeline clean, 1 of 1 jobs captured 2 detections
processes
202
operations
70K
packages
8
compiler runs
2
connections
3
job time
37s
capture
1.3 MB
records
140K
bytes / record
9.2

Build behaviourits build script reached github.com, release-assets.githubusercontent.comits build script ran curlundeclared fetchlinked a downloaded binaryfetched outside crates.iocompiled C/C++

run 7567be32-1409-422a-bcac-f3eeb41f22d2 · built 2026-10-09 · complete

Artifact

file · retained · product · graph v1
1

Checks

12 of 14 clear Network activity Data flow analysis
Build behavior▲✓✓✓✓▲✓✓
Supply chain✓✓✓✓✓
Pipeline✓

Detections

2
  • 3 uncompiled libraries linked
    reactor-webrtc-sys 0.22.1 › github.com, release-assets.githubusercontent.com
    high
  • Build script reached github.com +1
    reactor-webrtc-sys 0.22.1 › github.com:443, release-assets.githubusercontent.com:443
    medium

Detection

highwitnessed

3 uncompiled libraries linked

Object file origin needs review

Subject
reactor-webrtc-sys 0.22.1
Destination
github.com, release-assets.githubusercontent.com
Reaches
Jobs
build-test
Rule
object-provenance · reactor-webrtc

Evidence

  1. Object written under a build script that downloadedcause

    /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/libwebrtc/lib/libc++.a: written under the build script at /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-1a71f22264cb01dd/build_script_build-1a71f22264cb01dd, which downloaded from github.com, release-assets.githubusercontent.com

    subject /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/libwebrtc/lib/libc++.a

  2. Object written under a build script that downloadedcause

    /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/libwebrtc/lib/libc++abi.a: written under the build script at /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-1a71f22264cb01dd/build_script_build-1a71f22264cb01dd, which downloaded from github.com, release-assets.githubusercontent.com

    subject /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/libwebrtc/lib/libc++abi.a

  3. Object written under a build script that downloadedcause

    /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/libwebrtc/lib/libwebrtc.a: written under the build script at /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-1a71f22264cb01dd/build_script_build-1a71f22264cb01dd, which downloaded from github.com, release-assets.githubusercontent.com

    subject /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/libwebrtc/lib/libwebrtc.a

  4. Build script fetched what its crate documents it fetchessupport

    reactor-webrtc-sys's build script fetches a prebuilt libwebrtc from github.com, release-assets.githubusercontent.com: reactor-webrtc-sys's build.rs curls a prebuilt libwebrtc from its GitHub release (observed on the registry, 2026-10-06)

Processes

build-test

cargo›cargo›build-script-build›tar

Ran
tar -xf /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/prebuilt.tar.zst -C /home/runner/work/react…
Invoked by
cargo build --release --locked --message-format=json-render-diagnostics
Lineage · 4 processes
  1. cargocargo build --release --locked --message-format=json-render-diagnostics2442
  2. cargo/home/runner/.rustup/toolchains/1.99.0-x86_64-unknown-linux-gnu/bin/cargo build --release --locked --message-format=json-render-diagnostics2442
  3. build-script-build/home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-1a71f22264cb01dd/build-script-build2508
  4. tartar -xf /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/prebuilt.tar.zst -C /home/runner/work/react…2516

Remediation

Inspect the writer and input chain. Confirm the object comes from a reviewed build step or declared prebuilt dependency. If its origin cannot be verified, replace it and rebuild.

Detection

mediumwitnessed

Build script reached github.com +1

Unexpected network connection

Subject
reactor-webrtc-sys 0.22.1
Destination
github.com:443, release-assets.githubusercontent.com:443
Jobs
build-test
Rule
egress

Evidence

  1. Connection outside the process’s allowed destinationscause

    connection to github.com:443, opened by curl

    subject github.com:443

    by curl -fsSL --retry 3 -o /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/prebuilt.sha256 https://git…

  2. Connection outside the process’s allowed destinationscause

    connection to release-assets.githubusercontent.com:443, opened by curl

    subject release-assets.githubusercontent.com:443

    by curl -fsSL --retry 3 -o /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/prebuilt.sha256 https://git…

  3. Connection opened by a build script or child processsupport

    the opener descends from the build script at /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-1a71f22264cb01dd/build_script_build-1a71f22264cb01dd

  4. Build script fetched what its crate documents it fetchessupport

    reactor-webrtc-sys's build script fetches a prebuilt libwebrtc from github.com, release-assets.githubusercontent.com: reactor-webrtc-sys's build.rs curls a prebuilt libwebrtc from its GitHub release (observed on the registry, 2026-10-06)

  5. Tool commandsupport

    Command: curl -fsSL --retry 3 -o /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/prebuilt.sha256 https://git…

    by curl -fsSL --retry 3 -o /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/prebuilt.sha256 https://git…

Processes

build-test

cargo›cargo›build-script-build›curl

Ran
curl -fsSL --retry 3 -o /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/prebuilt.sha256 https://git…
Invoked by
cargo build --release --locked --message-format=json-render-diagnostics
Lineage · 4 processes
  1. cargocargo build --release --locked --message-format=json-render-diagnostics2442
  2. cargo/home/runner/.rustup/toolchains/1.99.0-x86_64-unknown-linux-gnu/bin/cargo build --release --locked --message-format=json-render-diagnostics2442
  3. build-script-build/home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-1a71f22264cb01dd/build-script-build2508
  4. curlcurl -fsSL --retry 3 -o /home/runner/work/reactor-webrtc/reactor-webrtc/target/release/build/reactor-webrtc-sys-c07202b0b384869c/out/prebuilt.sha256 https://git…2511

Remediation

The crate's build script reached the network at compile time, outside the registry's checksums. Build it from what the registry ships (the crate's own environment variable or from-source feature), or record the download as accepted once it is reviewed.

Network

3 peers
  • github.com:443 reactor-webrtc-sys's own build code · curl · GitHub, Inc. · 1 file undeclared
  • release-assets.githubusercontent.com:443 reactor-webrtc-sys's own build code · curl · Fastly, Inc. · 1 file undeclared
  • static.crates.io:8080 the package manager · cargo (reactor-webrtc) via crates.io · 3,878 files · went into an output ecosystem
Dependencies8Build behaviour
ld-linux-x86-64.so.2system library
libc.so.6system library
libgcc_s.so.1system library
libm.so.6system library
libmvec.so.1system library
cc1.6.0
find-msvc-tools0.1.14
shlex2.0.1

Raw data

capture
1.3 MB
records
139,635
bytes per record
9.2

Loading a sample of the capture

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1 of 1 jobs captured: build-test success · Generated 2026-10-09 · run 7567be32-1409-422a-bcac-f3eeb41f22d2

analysis 0.1.0 · 2026-10-08 · c0b8b6b · graph v1