After upgrading Kimi CLI to version 1.17.0 on Ubuntu 22.04, I get the following error when trying to run the program:

[babushkinaa]

What version of Kimi Code CLI is running?

1.17.0

Which open platform/subscription were you using?

/login

Which model were you using?

kimi-for-coding

What platform is your computer?

Linux 6.8.0-101-generic x86_64 x86_64

What issue are you seeing?

markdown

Description

After upgrading Kimi CLI to version 1.17.0 on Ubuntu 22.04, I get the following error when trying to run the program:
httpx.LocalProtocolError: Illegal header value b'#101~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Feb 11 13:19:54 UTC '

text

The program crashes immediately after startup and cannot be used.

Root Cause

The error occurs because Kimi CLI uses the content of /proc/version (via platform.version()) to construct the X-Msh-Os-Version HTTP header. On Ubuntu systems, this string starts with the # character, which is forbidden by HTTP specification for header values.

Specifically:

• platform.version() returns: #101~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Feb 11 13:19:54 UTC
• The # at the beginning makes the entire header invalid, causing httpx to reject it with LocalProtocolError.

Steps to Reproduce

1. Install Kimi CLI 1.17.0 on Ubuntu 22.04 (or any system where /proc/version starts with #)
2. Run kimi
3. Observe the error

Expected Behavior

The program should start normally without crashing.

Actual Behavior

The program crashes with the httpx.LocalProtocolError shown above.

Environment

• OS: Ubuntu 22.04.5 LTS
• Kernel: 6.8.0-101-generic
• Kimi CLI version: 1.17.0
• Python version: 3.10.12
• Installation method: uv tool install kimi-cli

Proposed Fix

Replace platform.version() with a safe combination of platform.system() and platform.release().

File 1: kimi_cli/auth/oauth.py (line 212)

Current code:

"X-Msh-Os-Version": platform.version(),
Suggested fix:

python
"X-Msh-Os-Version": f"{platform.system()} {platform.release()}",

### What steps can reproduce the bug?

File 2: kimi_cli/utils/environment.py (line 31)

Current code:

python
os_version = platform.version()
Suggested fix:

python
os_version = f"{platform.system()} {platform.release()}"
Result before fix:

text
#101~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Feb 11 13:19:54 UTC
Result after fix:

text
Linux 6.8.0-101-generic

### What is the expected behavior?

dditional Context
This issue does not occur on systems where platform.version() returns a string without the leading #. The problem is specific to Ubuntu and possibly other distributions that include the build number prefix in /proc/version.

I have manually patched my local installation and confirmed that the fix works.

Possible Related Issues
The same problem might occur anywhere else in the codebase where platform.version() is used to construct HTTP headers.

Consider reviewing all uses of platform.version() for header construction.

### Additional information

_No response_

[babushkinaa]

markdown

Description

After upgrading Kimi CLI to version 1.17.0 on Ubuntu 22.04, I get the following error when trying to run the program:
httpx.LocalProtocolError: Illegal header value b'#101~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Feb 11 13:19:54 UTC '

text

The program crashes immediately after startup and cannot be used.

Root Cause

The error occurs because Kimi CLI uses the content of /proc/version (via platform.version()) to construct the X-Msh-Os-Version HTTP header. On Ubuntu systems, this string starts with the # character, which is forbidden by HTTP specification for header values.

Specifically:

• platform.version() returns: #101~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Feb 11 13:19:54 UTC
• The # at the beginning makes the entire header invalid, causing httpx to reject it with LocalProtocolError.

Steps to Reproduce

1. Install Kimi CLI 1.17.0 on Ubuntu 22.04 (or any system where /proc/version starts with #)
2. Run kimi
3. Observe the error

Expected Behavior

The program should start normally without crashing.

Actual Behavior

The program crashes with the httpx.LocalProtocolError shown above.

Environment

• OS: Ubuntu 22.04.5 LTS
• Kernel: 6.8.0-101-generic
• Kimi CLI version: 1.17.0
• Python version: 3.10.12
• Installation method: uv tool install kimi-cli

Proposed Fix

Replace platform.version() with a safe combination of platform.system() and platform.release().

File 1: kimi_cli/auth/oauth.py (line 212)

Current code:

"X-Msh-Os-Version": platform.version(),
Suggested fix:

python
"X-Msh-Os-Version": f"{platform.system()} {platform.release()}",
File 2: kimi_cli/utils/environment.py (line 31)

Current code:

python
os_version = platform.version()
Suggested fix:

python
os_version = f"{platform.system()} {platform.release()}"
Result before fix:

text
#101~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Feb 11 13:19:54 UTC
Result after fix:

text
Linux 6.8.0-101-generic
The new value is fully HTTP-compliant (no special characters, alphanumeric + dots + hyphens only).

Additional Context
This issue does not occur on systems where platform.version() returns a string without the leading #. The problem is specific to Ubuntu and possibly other distributions that include the build number prefix in /proc/version.

I have manually patched my local installation and confirmed that the fix works.

Possible Related Issues
The same problem might occur anywhere else in the codebase where platform.version() is used to construct HTTP headers.

Consider reviewing all uses of platform.version() for header construction.

Thank you for maintaining this great tool!

[voloshchik]

Same issue here on Ubuntu 22.04.

Kernel: #104~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Mon Feb 16 20:22:09 UTC

Getting the same LocalProtocolError with the illegal header value starting with #.

Can confirm this is reproducible on kernel build #104 as well.

[Br1an67]

This is the same root cause as #1321 and #1289. PR #1527 fixes both the create_openai_client() path (kosong) and the _ascii_header_value() function in auth/oauth.py that constructs the X-Msh-Os-Version header. Control characters from platform.version() are now stripped before being used in any HTTP header.