SB2026102141 - SUSE update for python-urllib3
Published: October 21, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Infinite loop (CVE-ID: CVE-2026-97688)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to a loop with an unreachable exit condition in the Deflate decoder when processing a chunked Deflate-encoded response containing bytes after the end of the compressed stream. A remote attacker can send a specially crafted response to cause a denial of service.
Exploitation requires content decoding to be enabled, streaming with a positive finite chunk size, and a decoded body that exceeds the requested chunk size.
2) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-97689)
CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in the HTTPResponse.stream() and read_chunked() methods when processing a chunked-transfer-encoded response with an unterminated chunk-size field. A remote attacker can send a crafted chunked response containing a long run of bytes without a newline to cause a denial of service.
Remediation
Install update from vendor's website.