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Issue title

Plaintext-equivalent password hash — unsalted single-pass digest

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Pick exactly which findings appear in the issue body. By default the top 5 are included. Uncheck noise, check what matters.

Top 5 (default)
Severity Rule Title File:line
CRIT MINED030 [MINED030] Python Pickle Loads: pickle.loads() can execute arbitrary code via __reduce__. lagrange/info/serialize.py:56
CRIT MINED018 [MINED018] Unsafe Deserialization Pickle: pickle.loads / yaml.load (without Loader=SafeLo… lagrange/info/serialize.py:56
CRIT SEC081 [SEC081] Python: pickle.loads / marshal.loads on untrusted data: pickle.load(s) and marsh… lagrange/info/serialize.py:56
CRIT SEC039 [SEC039] Plaintext-equivalent password hash — unsalted single-pass digest: Single-pass di… lagrange/client/wtlogin/tlv/common.py:68
CRIT SEC039 [SEC039] Plaintext-equivalent password hash — unsalted single-pass digest: Single-pass di… lagrange/client/base.py:244
CRIT MINED107 Missing import: `stat` used but not imported lagrange/utils/httpcat.py:106
HIGH SEC029 [SEC029] Server-Side Request Forgery (SSRF) — outbound HTTP from user input: Outbound HTT… lagrange/utils/httpcat.py:67
HIGH MINED001 [MINED001] Bare Except Pass: except: pass or except Exception: pass — silently swallows e… lagrange/utils/binary/protobuf.py:120
HIGH MINED004 [MINED004] Weak Crypto: MD5/SHA1/DES/RC4 used for security context (not just checksums). lagrange/client/wtlogin/tlv/common.py:68
HIGH MINED004 [MINED004] Weak Crypto: MD5/SHA1/DES/RC4 used for security context (not just checksums). lagrange/client/wtlogin/oicq.py:159
HIGH MINED004 [MINED004] Weak Crypto: MD5/SHA1/DES/RC4 used for security context (not just checksums). lagrange/client/base.py:244
HIGH MINED110 Blocking call `input` inside async function `login` lagrange/client/client.py:54
HIGH MINED110 Blocking call `input` inside async function `login` lagrange/client/client.py:53
HIGH MINED108 `self.decompressed_body` used but never assigned in __init__ lagrange/utils/httpcat.py:43
HIGH MINED108 `self.decompressed_body` used but never assigned in __init__ lagrange/utils/httpcat.py:40
HIGH MINED108 `self._login` used but never assigned in __init__ lagrange/utils/log.py:40
HIGH MINED108 `self._utils` used but never assigned in __init__ lagrange/utils/log.py:36
HIGH MINED108 `self._network` used but never assigned in __init__ lagrange/utils/log.py:32
HIGH MINED108 `self._init` used but never assigned in __init__ lagrange/utils/log.py:21
HIGH MINED108 `self._utils` used but never assigned in __init__ lagrange/utils/log.py:15
HIGH MINED108 `self._network` used but never assigned in __init__ lagrange/utils/log.py:14
HIGH MINED108 `self._login` used but never assigned in __init__ lagrange/utils/log.py:13
HIGH MINED108 `self._read_loop` used but never assigned in __init__ lagrange/utils/network.py:95
HIGH MINED108 `self.on_connected` used but never assigned in __init__ lagrange/utils/network.py:94
HIGH MINED108 `self.connect` used but never assigned in __init__ lagrange/utils/network.py:93
HIGH MINED108 `self.reader` used but never assigned in __init__ lagrange/utils/network.py:79
HIGH MINED108 `self.on_error` used but never assigned in __init__ lagrange/utils/network.py:88
HIGH MINED108 `self.close` used but never assigned in __init__ lagrange/utils/network.py:83
HIGH MINED108 `self.on_message` used but never assigned in __init__ lagrange/utils/network.py:81
HIGH MINED108 `self.stop` used but never assigned in __init__ lagrange/utils/network.py:86
HIGH MINED108 `self.on_error` used but never assigned in __init__ lagrange/utils/network.py:85
HIGH MINED108 `self.closed` used but never assigned in __init__ lagrange/utils/network.py:78
HIGH MINED108 `self.close` used but never assigned in __init__ lagrange/utils/network.py:73
HIGH MINED108 `self.writer` used but never assigned in __init__ lagrange/utils/network.py:67
HIGH MINED108 `self.on_disconnect` used but never assigned in __init__ lagrange/utils/network.py:65
HIGH MINED108 `self.ssl` used but never assigned in __init__ lagrange/utils/network.py:60
HIGH MINED108 `self.port` used but never assigned in __init__ lagrange/utils/network.py:60
HIGH MINED108 `self.host` used but never assigned in __init__ lagrange/utils/network.py:60
HIGH COMP001 [COMP001] High cognitive complexity: Function `parse_msg` has cognitive complexity 64 (So… lagrange/client/message/decoder.py:22
HIGH GHSA-r6ph-v2qm-q3c2 cryptography: GHSA-r6ph-v2qm-q3c2 pdm.lock
HIGH PYSEC-2026-35 cryptography: PYSEC-2026-35 pdm.lock
HIGH CORE_NO_TESTS No test files found —
MED ERR001 [ERR001] Silent Exception Swallowing: Silently swallowing all exceptions hides bugs. Even… lagrange/utils/binary/protobuf.py:120
MED SEC127 [SEC127] AI agent stub — TODO: implement / pass placeholder body: Function body left as T… lagrange/info/serialize.py:15
MED SEC007 [SEC007] Unsafe Deserialization: Unsafe deserialization can execute arbitrary code. lagrange/info/serialize.py:56
MED MINED111 Bare except continues silently lagrange/utils/network.py:87
MED COMP001 [COMP001] High cognitive complexity: Function `login` has cognitive complexity 17 (SonarS… lagrange/client/client.py:33
MED GHSA-h4gh-qq45-vh27 cryptography: GHSA-h4gh-qq45-vh27 pdm.lock
MED CORE_NO_CI No CI/CD configuration found —
LOW COMP001 [COMP001] High cognitive complexity: Function `qrcode_login` has cognitive complexity 9 (… lagrange/client/base.py:269
LOW GHSA-79v4-65xg-pq4g cryptography: GHSA-79v4-65xg-pq4g pdm.lock
INFO MINED062 [MINED062] Python Dataclass No Fields: @dataclass over an empty class — unfinished model. lagrange/client/server_push/events/grou…:31
INFO MINED064 [MINED064] Python Input Call: input() blocks for stdin. Inappropriate in services. lagrange/client/client.py:53
INFO MINED050 [MINED050] Stub Only Function: Function declared but body is just pass, return None, rais… lagrange/client/message/elems.py:53
INFO MINED050 [MINED050] Stub Only Function: Function declared but body is just pass, return None, rais… lagrange/client/message/decoder.py:54
INFO MINED050 [MINED050] Stub Only Function: Function declared but body is just pass, return None, rais… lagrange/client/base.py:341
Reset to top 5 56 findings available (after auto-suppression of test files + won't-fix)

Issue body (markdown)

## Code-quality scan: `LagrangeDev/lagrange-python`

**Score: 79/100 (D+)**  ·  56 findings  ·  scanned 2026-06-05 18:26 UTC  ·  3,660 LOC

| Severity | Count |
|---|---|
| CRITICAL | 6 |
| HIGH | 36 |
| MEDIUM | 7 |
| LOW | 2 |

📊 [Full filterable report](https://repobility.com/scan/35d3b381-1b85-4e26-8074-d09fb3338809/)  ·  ![scorecard](https://repobility.com/scan/35d3b381-1b85-4e26-8074-d09fb3338809/report.png?v=1780683985-s2)

### Top findings

1. **CRITICAL** `MINED030` — Python Pickle Loads
   `lagrange/info/serialize.py:56` · CWE-502 · ✓ Repobility
2. **CRITICAL** `MINED018` — Unsafe Deserialization Pickle
   `lagrange/info/serialize.py:56` · CWE-502 · ✓ Repobility
3. **CRITICAL** `SEC081` — Python: pickle.loads / marshal.loads on untrusted data
   `lagrange/info/serialize.py:56` · A05:2021 Security Misconfiguration
4. **CRITICAL** `SEC039` — Plaintext-equivalent password hash — unsalted single-pass digest
   `lagrange/client/wtlogin/tlv/common.py:68` · CWE-916 · A02:2021 Cryptographic Failures
5. **CRITICAL** `SEC039` — Plaintext-equivalent password hash — unsalted single-pass digest
   `lagrange/client/base.py:244` · CWE-916 · A02:2021 Cryptographic Failures

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**Security note**: this issue is public. If any flagged finding is a real, exploitable vulnerability, please redirect to your `SECURITY.md` policy or open a [private security advisory](https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing-information-about-vulnerabilities/privately-reporting-a-security-vulnerability) instead. We're happy to close this and re-submit privately.

---

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