SB2026092389 - Multiple vulnerabilities in Ansible Automation Platform 2.7 packages
Published: September 23, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 vulnerabilities.
1) Inefficient Algorithmic Complexity (CVE-ID: CVE-2026-54284)
CWE-ID: CWE-407 - Inefficient Algorithmic Complexity
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 inefficient algorithmic complexity in TokenList.__init__ when parsing attacker-supplied SQL with deeply nested grouping constructs. A remote attacker can send a specially crafted SQL input to cause a denial of service.
The issue is reachable through the default sqlparse.parse, sqlparse.format, and sqlparse.split entry points, and nested parentheses, nested CASE WHEN expressions, nested subqueries, or nested ARRAY[] literals can trigger excessive CPU consumption before parser depth and token caps raise an error.
2) Inefficient regular expression complexity (CVE-ID: CVE-2026-59893)
CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity
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 inefficient regular expression complexity in the dollar-quoted SQL literal lexer and multiline comment patterns when parsing user-supplied SQL text. A remote attacker can send specially crafted SQL input with unmatched dollar-quote delimiters or unterminated comment openers to cause a denial of service.
A single crafted request carrying SQL text is sufficient to trigger sustained CPU exhaustion.
3) Resource exhaustion (CVE-ID: CVE-2026-71491)
CWE-ID: CWE-400 - Resource exhaustion
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 uncontrolled resource consumption in the group_comments function when parsing a comment-only SQL statement. A remote attacker can supply many single-line comments to consume excessive CPU resources and cause a denial of service.
The issue is reachable via sqlparse.parse() and sqlparse.format(sql, strip_comments=true), and the quadratic cost is incurred before the token-count guard is applied.
4) Cross-site scripting (CVE-ID: CVE-2026-56858)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
The vulnerability allows a remote attacker to inject arbitrary content, potentially leading to cross-site scripting.
The vulnerability exists due to improper neutralization of special elements in html/template when rendering pathological inputs that close an unescaped '/' early. A remote attacker can supply crafted input data to inject arbitrary content, potentially leading to cross-site scripting.
5) Uncontrolled Recursion (CVE-ID: CVE-2026-56859)
CWE-ID: CWE-674 - Uncontrolled Recursion
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 uncontrolled recursion in encoding/xml Decoder.DecodeElement when parsing deeply nested XML input. A remote attacker can send specially crafted XML data to cause a denial of service.
6) Resource exhaustion (CVE-ID: CVE-2026-56860)
CWE-ID: CWE-400 - Resource exhaustion
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 uncontrolled resource consumption in net/url URL.Parse and URL.ResolveReference when processing relative paths containing parent directory ('..') segments. A remote attacker can send specially crafted input to cause a denial of service.
7) Uncontrolled Recursion (CVE-ID: CVE-2026-33818)
CWE-ID: CWE-674 - Uncontrolled Recursion
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 uncontrolled recursion in Unmarshal and UnmarshalWithParams in encoding/asn1 when parsing deeply nested recursive structures. A remote attacker can supply specially crafted ASN.1 input to cause a denial of service.
8) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-56862)
CWE-ID: CWE-664 - Improper control of a resource through its lifetime
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 improper state management in crypto/tls when processing handshake messages before handshake completion. A remote attacker can send repeated KeyUpdate messages to cause a denial of service.
9) Resource exhaustion (CVE-ID: CVE-2026-56853)
CWE-ID: CWE-400 - Resource exhaustion
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 improper timeout handling in net/http when processing new connections for unencrypted HTTP/2 support. A remote attacker can open a connection and withhold the expected HTTP/2 client preface bytes to cause a denial of service.
Only servers configured to support unencrypted HTTP/2 are vulnerable.
Remediation
Install update from vendor's website.