SUSE Python-sqlparse Important Denial of Service Advisory 2026-3907

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## This update for python-sqlparse fixes the following issues: * CVE-2026-54284: high algorithm complexity when parsing SQL payloads with hundreds of nesting levels can lead to denial of service via excessive resource consumption (bsc#1275459). * CVE-2026-59893: quadratic complexity when processing unmatched dollar-quoted literal and multiline- delimiters can lead to denial of service (bsc#1275461). * CVE-2026-59894: improper backlash escaping allows for injection of Python or PHP code via a crafted SQL input (bsc#1275460). * CVE-2026-71491: quadratic complexity in `group_comments` when processing -only statements can lead to denial of services (bsc#1275466). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like

## This update for python-sqlparse fixes the following issues: * CVE-2026-54284: high algorithm complexity when parsing SQL payloads with hundreds of nesting levels can lead to denial of service via excessive resource consumption (bsc#1275459). * CVE-2026-59893: quadratic complexity when processing unmatched dollar-quoted literal and multiline- delimiters can lead to denial of service (bsc#1275461). * CVE-2026-59894: improper backlash escaping allows for injection of Python or PHP code via a crafted SQL input (bsc#1275460). * CVE-2026-71491: quadratic complexity in `group_comments` when processing -only statements can lead to denial of services (bsc#1275466). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like

* CVE-2026-54284 ( SUSE ): 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-54284 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-54284 ( NVD ): 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-59893 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Announcement ID: SUSE-SU-2026:3907-1 Release Date: 2026-09-01T09:10:51Z Rating: important

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