SSRF via permissive domain prefix matching
Published Jan 30, 2023 · Updated Mar 28, 2025
SSRF in IncludeSecurity safeurl-python before 1.2 allows remote attackers to send requests to unintended external domains through allowlist bypass. The isInList method passes each configured domain into a start-anchored regular expression, leaving the end unanchored and treating dots as wildcards. Applications are exposed only when they use the domain allowlist with attacker-controlled URLs; a crafted hostname redirects an outbound request to an unapproved external host.
Summary
What happened
SSRF in IncludeSecurity safeurl-python before 1.2 allows remote attackers to send requests to unintended external domains through allowlist bypass. The isInList method passes each configured domain into a start-anchored regular expression, leaving the end unanchored and treating dots as wildcards. Applications are exposed only when they use the domain allowlist with attacker-controlled URLs; a crafted hostname redirects an outbound request to an unapproved external host.
The record
- CVE
- CVE-2023-24622
- Published
- Jan 30, 2023
- Updated
- Mar 28, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-918
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 30, 2023CVE publishedPublication date reported by the CVE source.
- Mar 28, 2025Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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