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GeezerVison is showing github.com — Smartcam update_credentials by Puxtril · Pull Request #1661 · python-kasa/python-kasa

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@Puxtril

@Puxtril Puxtril commented Feb 24, 2026

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Newer Tapo cameras use changeAdminPassword to update admin credentials on the device. Tested on my C206.

As a note: it seems these devices limit functionality until the admin password is updated. I've noted on my C206 the Tapo camera stream would not load when provided default credentials, and my H200 hub would not find devices. The hub would respond successfully to API calls to start/stop scanning, but would not return any found devices. Only after updating credentials would it actually return found devices.

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Puxtril added 2 commits February 23, 2026 22:35
@Puxtril
Add update_credentials for smartcam
6527cc0
@Puxtril
Move publickey encryption to method
6d04a03
github-advanced-security[bot]
github-advanced-security AI found potential problems Feb 24, 2026
View reviewed changes
Comment thread kasa/smartcam/smartcamdevice.py

async def update_credentials(self, username: str, password: str) -> dict:
cur_pass = self.credentials.password if self.credentials.password else self.protocol._transport._default_credentials.password
cur_pass_hash = hashlib.sha256(cur_pass.encode()).hexdigest().upper()

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Code scanning / CodeQL

Use of a broken or weak cryptographic hashing algorithm on sensitive data High

Sensitive data (password)
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is used in a hashing algorithm (SHA256) that is insecure for password hashing, since it is not a computationally expensive hash function.
Sensitive data (password)
Error loading related location
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is used in a hashing algorithm (SHA256) that is insecure for password hashing, since it is not a computationally expensive hash function.
Comment thread kasa/smartcam/smartcamdevice.py
async def update_credentials(self, username: str, password: str) -> dict:
cur_pass = self.credentials.password if self.credentials.password else self.protocol._transport._default_credentials.password
cur_pass_hash = hashlib.sha256(cur_pass.encode()).hexdigest().upper()
new_pass_hash = hashlib.sha256(password.encode()).hexdigest().upper()

Check failure

Code scanning / CodeQL

Use of a broken or weak cryptographic hashing algorithm on sensitive data High

Sensitive data (password)
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is used in a hashing algorithm (SHA256) that is insecure for password hashing, since it is not a computationally expensive hash function.
@Puxtril Puxtril mentioned this pull request Feb 24, 2026
Out of box Tapo TC40: discovery not working, authentication failure on wifi setup #1628
Closed
@ZeliardM ZeliardM mentioned this pull request Mar 1, 2026
Update smartcam credential handling and tests #1664
Merged
@Puxtril

Puxtril commented Mar 1, 2026

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Superseded by #1664
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@Puxtril Puxtril closed this Mar 1, 2026
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@Puxtril @github-advanced-security
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