Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-4360: In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function. CVE-2026-15308: The incremental HTML parser (html.parser.HTMLParser) allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data. CVE-2026-0864: When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value.
Fixed packages 16
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | python3.14 | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-debug | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-debuginfo | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-debugsource | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-devel | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-freethreading | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-freethreading-debug | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-freethreading-devel | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-freethreading-idle | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-freethreading-libs | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-freethreading-test | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-freethreading-tkinter | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-idle | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-libs | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-test | 0:3.14.6-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.14-tkinter | 0:3.14.6-1.amzn2023.0.3 |
Vulnerabilities 3
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High 8.7
Incremental HTMLParser feed() allows CPU-exhaustion DoS via repeated unterminated markup declarations
The incremental HTML parser (html.parser.HTMLParser) allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data.
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Medium 4.1
Configuration Injection via Carriage Return (\r) in write() method
When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value.
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Low 2.0
Tarfile.extract() doesn't fully respect filter parameter
In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='…