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cargo / shiguredo_webrtc / 0.156.1-canary.1

shiguredo_webrtc 0.156.1-canary.1

bitbison: flagged, behavior flagged, dependencies clean, posture not checked, pipeline clean, 1 of 1 jobs captured RiskmediumVulnsnone
processes
324
operations
8.4K
packages
37
compiler runs
33
connections
3
job time
26s
capture
126 KB
records
15K
bytes / record
8.2

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

run 37179d5f-f226-4f85-8896-0c413c69550c · built 2026-10-17 · complete View on crates.io

Graph

egress · medium · in libshiguredo_webrtc.rlib
3

Checks

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

Detections

2
  • Build script reached github.com +1
    shiguredo_webrtc 0.156.1-canary.1 › github.com:443, release-assets.githubusercontent.com:443
    medium
  • Prebuilt library downloaded by a build script from its documented source
    libwebrtc_c.a › github.com, release-assets.githubusercontent.com
    medium

Detection

mediumwitnessed

Build script reached github.com +1

Unexpected network connection

Subject
shiguredo_webrtc 0.156.1-canary.1
Destination
github.com:443, release-assets.githubusercontent.com:443
Reaches
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 -fSL --retry 3 -o /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz https://github.com/shigu…

  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 -fSL --retry 3 -o /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz https://github.com/shigu…

  3. What a build script's fetch becamesupport

    2 files came down; nothing the build compiled, linked or ran

  4. Connection opened by a build script or child processsupport

    the opener descends from the build script at /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-1196615233ef00a7/build_script_build-1196615233ef00a7

  5. Build script fetched what its crate documents it fetchessupport

    shiguredo_webrtc's build script fetches a prebuilt libwebrtc from github.com, release-assets.githubusercontent.com: shiguredo's webrtc crate downloads shiguredo-webrtc-build's prebuilt from its GitHub release (observed on the registry, 2026-10-06)

  6. Tool commandsupport

    Command: curl -fSL --retry 3 -o /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz https://github.com/shigu…

    by curl -fSL --retry 3 -o /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz https://github.com/shigu…

In libshiguredo_webrtc.rlib

Loading the graph

Processes

build-test

cargo›cargo›build-script-build›curl

Ran
curl -fSL --retry 3 -o /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz https://github.com/shigu…
Invoked by
cargo build --release --locked --message-format=json-render-diagnostics
Lineage · 4 processes
  1. cargocargo build --release --locked --message-format=json-render-diagnostics2484
  2. cargo/home/runner/.rustup/toolchains/1.99.0-x86_64-unknown-linux-gnu/bin/cargo build --release --locked --message-format=json-render-diagnostics2484
  3. build-script-build/home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-1196615233ef00a7/build-script-build2983
  4. curlcurl -fSL --retry 3 -o /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz https://github.com/shigu…2986

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.

Detection

mediumwitnessed

Prebuilt library downloaded by a build script from its documented source

Object file origin needs review

Subject
/home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/lib/libwebrtc_c.awritten by build_script_build-1196615233ef00a7
Destination
github.com, release-assets.githubusercontent.com
Jobs
build-test
Rule
object-provenance · webrtc-rs

Witness chain

  1. github.com:443
    source
  2. /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gzvia curl -fSL --retry 3 -o /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz https://github.com/shigu
  3. /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt/lib/libwebrtc_c.avia tar xf /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz -C /home/runner/work/webrtc-rs/webrtc-rs
  4. /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/lib/libwebrtc_c.avia /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-1196615233ef00a7/build-script-build
    • Object written under a build script that downloadedfrom github.com · release-assets.githubusercontent.com

      written under the build script at /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-1196615233ef00a7/build_script_build-1196615233ef00a7, which downloaded from github.com, release-assets.githubusercontent.com

    • Obfuscated toolchain bypassfrom libwebrtc_c.aby tar

      copied input /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt/lib/libwebrtc_c.a: Written by tar from a pipe without a recorded source compilation

    • Asked for by the build's own declaration

      shiguredo_webrtc asked the linker for it: static webrtc_c (target/release/build/shiguredo_webrtc-f5292988bef6f8ff/output)

    subject
  5. member
    artifact

Evidence

  1. Build script fetched what its crate documents it fetchessupport

    shiguredo_webrtc's build script fetches a prebuilt libwebrtc from github.com, release-assets.githubusercontent.com: shiguredo's webrtc crate downloads shiguredo-webrtc-build's prebuilt from its GitHub release (observed on the registry, 2026-10-06)

In libshiguredo_webrtc.rlib

Loading the graph

Processes

build-test

cargo›cargo›build-script-build›tar

Ran
tar xf /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz -C /home/runner/work/webrtc-rs/webrtc-rs…
Invoked by
cargo build --release --locked --message-format=json-render-diagnostics
Lineage · 4 processes
  1. cargocargo build --release --locked --message-format=json-render-diagnostics2484
  2. cargo/home/runner/.rustup/toolchains/1.99.0-x86_64-unknown-linux-gnu/bin/cargo build --release --locked --message-format=json-render-diagnostics2484
  3. build-script-build/home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-1196615233ef00a7/build-script-build2983
  4. tartar xf /home/runner/work/webrtc-rs/webrtc-rs/target/release/build/shiguredo_webrtc-f5292988bef6f8ff/out/prebuilt.tar.gz -C /home/runner/work/webrtc-rs/webrtc-rs…2991

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.

Network

3 peers
  • github.com:443 shiguredo_webrtc's own build code · curl · GitHub, Inc. · 2 files undeclared
  • release-assets.githubusercontent.com:443 shiguredo_webrtc's own build code · curl · Fastly, Inc. · 2 files undeclared
  • static.crates.io:8080 the package manager · cargo (webrtc-rs) via crates.io · 1,695 files · went into an output ecosystem
Dependencies38Build behaviour
aho-corasick1.1.5
bindgen0.72.1build script
bitflags2.13.1
cc1.4.5
cexpr0.6.0
cfg-if1.0.4
clang-sys1.9.1build script
cmake0.1.58
either1.18.0
find-msvc-tools0.1.12
glob0.3.4
itertools0.13.0
ld-linux-x86-64.so.2system library
libc0.2.189build script
libc.so.6system library
libgcc_s.so.1system library
libloading0.8.9
libm.so.6system library
libmvec.so.1system library
log0.4.34
memchr2.8.3
minimal-lexical0.2.1
nojson0.3.15
nom7.1.3
prettyplease0.2.37build script
proc-macro21.0.107build script
quote1.0.47build script
regex1.13.1
regex-automata0.4.18
regex-syntax0.8.11
rustc-hash2.1.3
shiguredo_cmake4.4.0build script
shiguredo_toml2026.2.0
shlex1.3.0
shlex2.0.1
syn2.0.119
unicode-ident1.0.24
windows-link0.2.1
Versions70RiskVulnsPublished
0.156.1-canary.06d ago
0.156.07d ago
0.155.010d ago
0.154.110d ago
0.154.1-canary.511d ago
0.154.1-canary.4not analyzed12d ago
0.154.1-canary.3not analyzed2026-10-03
0.154.1-canary.2not analyzed2026-09-28
0.154.1-canary.1not analyzed2026-09-19
0.154.1-canary.0not analyzed2026-09-19
0.154.0not analyzed2026-09-10
0.153.1not analyzed2026-09-09
0.153.0yankednot analyzed2026-09-09
0.152.1not analyzed2026-09-09
0.152.1-canary.3not analyzed2026-09-02
0.152.1-canary.2not analyzed2026-08-31
0.152.1-canary.1not analyzed2026-08-30
0.152.1-canary.0not analyzed2026-08-26
0.152.0not analyzed2026-08-25
0.151.0not analyzed2026-08-10
0.150.3not analyzed2026-07-20
0.150.2not analyzed2026-06-23
0.150.1not analyzed2026-06-12
0.150.0not analyzed2026-06-09
0.150.0-canary.0not analyzed2026-06-09
0.149.0not analyzed2026-06-04
0.149.0-canary.0not analyzed2026-06-04
0.148.1not analyzed2026-06-04
0.148.1-canary.3not analyzed2026-06-04
0.148.1-canary.2not analyzed2026-06-04
0.148.1-canary.1not analyzed2026-06-01
0.148.0not analyzed2026-05-16
0.147.2not analyzed2026-04-22
0.147.1not analyzed2026-04-20
0.147.1-canary.6not analyzed2026-04-19
0.147.1-canary.5not analyzed2026-04-13
0.147.1-canary.4not analyzed2026-04-11
0.147.1-canary.3not analyzed2026-04-08
0.147.1-canary.2not analyzed2026-04-04
0.147.1-canary.1not analyzed2026-04-04
0.147.1-canary.0not analyzed2026-04-02
0.147.0not analyzed2026-04-02
0.146.3not analyzed2026-04-02
0.146.3-canary.4not analyzed2026-04-02
0.146.3-canary.3not analyzed2026-04-01
0.146.3-canary.2not analyzed2026-03-31
0.146.3-canary.1not analyzed2026-03-30
0.146.3-canary.0not analyzed2026-03-29
0.146.2not analyzed2026-03-27
0.146.2-canary.5not analyzed2026-03-27
0.146.2-canary.3not analyzed2026-03-26
0.146.2-canary.2not analyzed2026-03-25
0.146.2-canary.1not analyzed2026-03-25
0.146.2-canary.0not analyzed2026-03-24
0.146.1not analyzed2026-03-24
0.146.1-canary.2not analyzed2026-03-21
0.146.1-canary.1not analyzed2026-03-19
0.146.1-canary.0not analyzed2026-03-19
0.146.0not analyzed2026-03-15
0.146.0-canary.5not analyzed2026-03-14
0.146.0-canary.4not analyzed2026-03-13
0.146.0-canary.3not analyzed2026-03-11
0.146.0-canary.2not analyzed2026-03-11
0.146.0-canary.1not analyzed2026-03-11
0.146.0-canary.0not analyzed2026-03-05
0.145.3-canary.1not analyzed2026-02-26
0.145.2not analyzed2026-02-26
0.145.1not analyzed2026-02-17
0.145.0not analyzed2026-02-12
0.156.1-canary.1mediumnone

Raw data

capture
126 KB
records
15,314
bytes per record
8.2

Loading a sample of the capture

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1 of 1 jobs captured: build-test success · Generated 2026-10-17 · run 37179d5f-f226-4f85-8896-0c413c69550c

analysis 0.1.0 · 2026-10-16 · e987d53 · graph v2