Common Weakness Enumeration
CWE-625
AllowedPermissive Regular Expression
Abstraction: Base · Status: Draft
The product uses a regular expression that does not sufficiently restrict the set of allowed values.
23 vulnerabilities reference this CWE, most recent first.
CVE-2026-120645 (GCVE-0-2026-120645)
Vulnerability from cvelistv5 – Published: 2026-11-03 23:40 – Updated: 2026-11-09 19:34
VLAI
EPSS
VEX
Title
CGI versions before 5.00 for Perl allow denial of service via submitted values used as a regex for optgroup selection in scrolling_list
Summary
CGI versions before 5.00 for Perl allow denial of service via submitted values used as a regex for optgroup selection in scrolling_list.
When rendering option groups, scrolling_list marks the selected options by interpolating each selected value, by default taken from the request parameters, unescaped into a substitution pattern.
A client can make the request die with an invalid pattern, or tie up the process with one that backtracks heavily.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 19:33 UTC
Assigner
CPANSec
CNA
References
3 references
| URL | Tags |
|---|---|
| https://metacpan.org/release/LEEJO/CGI-4.72/sourc… | technical-description |
| https://metacpan.org/release/LEEJO/CGI-5.00/changes | release-notes |
| https://github.com/leejo/CGI.pm/commit/824956fbb0… | patch |
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CVE-2026-120631 (GCVE-0-2026-120631)
Vulnerability from cvelistv5 – Published: 2026-11-03 23:39 – Updated: 2026-11-09 19:05
VLAI
EPSS
VEX
Title
CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial of service via the client cookie expires value used as a regex in parse
Summary
CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial of service via the client cookie expires value used as a regex in parse.
CGI's cookie method reads the Cookie request header through parse, which interpolates the header's expires value unescaped into the substitution pattern that removes it from the cookie string.
A client can make the request die with an invalid pattern, or tie up the process with one that backtracks catastrophically.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 19:04 UTC
Assigner
CPANSec
CNA
References
3 references
| URL | Tags |
|---|---|
| https://metacpan.org/release/LEEJO/CGI-4.72/sourc… | technical-description |
| https://metacpan.org/release/LEEJO/CGI-5.00/changes | release-notes |
| https://github.com/leejo/CGI.pm/commit/95e044af2e… | patch |
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CVE-2026-118995 (GCVE-0-2026-118995)
Vulnerability from cvelistv5 – Published: 2026-10-30 13:10 – Updated: 2026-11-06 16:52
VLAI
EPSS
VEX
Title
CallBackery versions before 0.62.0 for Perl accept unintended values in form fields checked by createRxValidator
Summary
CallBackery versions before 0.62.0 for Perl accept unintended values in form fields checked by createRxValidator.
createRxValidator() is documented to anchor the supplied pattern at both ends, but builds /^${rx}$/ without grouping the pattern. An alternation such as yes|no then accepts any value starting with yes or ending with no, and $ also accepts a value with one trailing newline.
An authenticated user can submit values the pattern was meant to reject, which an application may then write into generated configuration files.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 16:52 UTC
CWE
- CWE-625 - Permissive Regular Expression
Assigner
CPANSec
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://metacpan.org/release/OETIKER/CallBackery-… | release-notes |
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CVE-2026-102983 (GCVE-0-2026-102983)
Vulnerability from cvelistv5 – Published: 2026-09-30 14:32 – Updated: 2026-09-30 16:24
VLAI
EPSS
VEX
Title
Astro: Netlify Image CDN allowlist bypass enables SSRF
Summary
Astro is a web framework for content-driven websites. From 5.2.0 until 8.2.4, the @astrojs/netlify adapter generates regular expressions for Netlify Image CDN remote-image allowlists without anchoring them to the beginning of the URL. Because Netlify evaluates these expressions with RegExp.test(), an allowed origin appearing only in a source URL's path or query can satisfy image.domains or image.remotePatterns while the URL's actual host remains attacker-controlled. An unauthenticated request to the public /.netlify/images endpoint can therefore cause the Image CDN to request attacker-selected URLs and may probe or reach internal services. Netlify egress protections may constrain reachable targets, and image transformation limits direct response exfiltration; no confidentiality or integrity impact has been demonstrated. This issue is fixed in version 8.2.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 16:22 UTC
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/withastro/astro/security/advis… | x_refsource_CONFIRM |
| https://github.com/withastro/astro/pull/17752 | x_refsource_MISC |
| https://github.com/withastro/astro/commit/e362d4c… | x_refsource_MISC |
| https://github.com/withastro/astro/releases/tag/@… | x_refsource_MISC |
Impacted products
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CVE-2026-83618 (GCVE-0-2026-83618)
Vulnerability from cvelistv5 – Published: 2026-09-01 14:49 – Updated: 2026-09-04 01:59
VLAI
EPSS
VEX
Title
xmldom: requireWellFormed DocType publicId/systemId validation is bypassable via an embedded line terminator
Summary
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. From 0.9.10 until 0.9.12, the requireWellFormed: true serializer validates DocumentType.publicId and DocumentType.systemId with PubidLiteral_match and SystemLiteral_match expressions produced by reg() in lib/grammar.js, which inherit the multiline flag. A complete valid literal on the first line can therefore satisfy the matcher while U+000A, U+000D, U+2028, or U+2029 and breakout markup remain in the emitted <!DOCTYPE ...> declaration. This bypasses the strict-serialization mitigation for the earlier DocumentType injection advisory; creation and direct property assignment remain unvalidated by design. This issue is fixed in @xmldom/xmldom version 0.9.12.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 01:58 UTC
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/xmldom/xmldom/security/advisor… | x_refsource_CONFIRM |
| https://github.com/xmldom/xmldom/pull/1071 | x_refsource_MISC |
| https://github.com/xmldom/xmldom/commit/7b2ec67e1… | x_refsource_MISC |
| https://github.com/xmldom/xmldom/releases/tag/0.9.12 | x_refsource_MISC |
Impacted products
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CVE-2026-83617 (GCVE-0-2026-83617)
Vulnerability from cvelistv5 – Published: 2026-09-01 14:47 – Updated: 2026-09-01 15:30
VLAI
EPSS
VEX
Title
xmldom: requireWellFormed element/attribute name validation is bypassable via an embedded line terminator
Summary
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. From 0.9.11 until 0.9.12, the requireWellFormed: true element and attribute name checks use the anchored QName_exact expression produced by reg() in lib/grammar.js, which inherits the multiline flag. A name with a valid first line followed by U+000A, U+000D, U+2028, or U+2029 and breakout markup therefore passes validation and is emitted verbatim in element start and end tags or attribute names. This bypasses the strict-serialization checks introduced for the earlier element-name and attribute-name injection advisories, while the default serialization path remains outside the strict guarantee. This issue is fixed in @xmldom/xmldom version 0.9.12.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:30 UTC
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/xmldom/xmldom/security/advisor… | x_refsource_CONFIRM |
| https://github.com/xmldom/xmldom/pull/1071 | x_refsource_MISC |
| https://github.com/xmldom/xmldom/commit/7b2ec67e1… | x_refsource_MISC |
| https://github.com/xmldom/xmldom/releases/tag/0.9.12 | x_refsource_MISC |
Impacted products
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CVE-2026-83609 (GCVE-0-2026-83609)
Vulnerability from cvelistv5 – Published: 2026-09-01 14:29 – Updated: 2026-09-01 18:10
VLAI
EPSS
VEX
Title
xmldom: Creation-time XML Name/QName validation is bypassable via an embedded line terminator, allowing injection on the default serialization path
Summary
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. From 0.9.0 until 0.9.12, the shared reg() builder in lib/grammar.js compiles the anchored QName_exact validator with the multiline flag, so ^ and $ validate only one line instead of the complete name. createElementNS, createAttributeNS, createDocumentType, and createAttribute consequently accept a malformed XML name whose first line is valid and whose later text injects markup when serialized through either the default path or requireWellFormed: true. The triggering ECMAScript line terminators are U+000A, U+000D, U+2028, and U+2029. This issue is fixed in @xmldom/xmldom version 0.9.12.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 17:34 UTC
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/xmldom/xmldom/security/advisor… | x_refsource_CONFIRM |
| https://github.com/xmldom/xmldom/pull/1071 | x_refsource_MISC |
| https://github.com/xmldom/xmldom/commit/7b2ec67e1… | x_refsource_MISC |
| https://github.com/xmldom/xmldom/releases/tag/0.9.12 | x_refsource_MISC |
Impacted products
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CVE-2026-82726 (GCVE-0-2026-82726)
Vulnerability from cvelistv5 – Published: 2026-08-31 03:05 – Updated: 2026-08-31 14:47
VLAI
EPSS
VEX
Title
AshPhoenix get_subdomain maps a crafted or differently-cased Host header to an arbitrary tenant
Summary
Permissive Regular Expression vulnerability in ash-project ash_phoenix lets a remote client select the tenant an Ash application uses, or degrade the request, by sending a crafted Host header.
AshPhoenix.Helpers.get_subdomain/2 stripped the root domain with String.replace(host, ~r/.?#{root_host}/, ""). The root host was interpolated raw, so each . became a wildcard and any metacharacter a pattern, and the replace was global and unanchored, so a match was removed from anywhere in the string. With root_host example.com, Host: foo.exampleXcom.attacker.net returned the tenant foo.attacker.net. A metacharacter-bearing or nil root host degraded the pattern or raised on every request. The comparison was also case-sensitive, so TENANT.EXAMPLE.COM and EXAMPLE.COM slipped past the root-host allowlist. conn.host comes from the client Host header. The fix matches the root host case-insensitively and only as an exact trailing suffix.
This issue affects ash_phoenix: from 2.1.26 before 2.3.25.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 14:47 UTC
Assigner
EEF
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/ash_phoenix/securi… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-82726.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-82726 | related |
| https://github.com/ash-project/ash_phoenix/commit… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ash-project | ash_phoenix |
Affected:
2.1.26 , < 2.3.25
(semver)
cpe:2.3:a:ash-project:ash_phoenix:*:*:*:*:*:*:*:* |
|
| ash-project | ash_phoenix |
Affected:
9a5ea4d377bc263de321d79574872a3dfc4fb541 , < 8306f29e77526840c89f3cd244996ce7c0fa2cda
(git)
cpe:2.3:a:ash-project:ash_phoenix:*:*:*:*:*:*:*:* |
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CVE-2026-79965 (GCVE-0-2026-79965)
Vulnerability from cvelistv5 – Published: 2026-09-09 12:51 – Updated: 2026-09-09 13:05
VLAI
EPSS
VEX
Summary
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an External Control of Critical State Data vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 13:04 UTC
CWE
- CWE-625 - Permissive Regular Expression
Assigner
dell
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-in/00050342… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | Secure Connect Gateway 5.0 - Application |
Affected:
0 , < 5.36.00.00 or later
(semver)
|
|
| Dell | Secure Connect Gateway 5.0 - Appliance |
Affected:
0 , < 5.36.00.16 or later
(semver)
|
Date Public
2026-08-31 06:30
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CVE-2026-73845 (GCVE-0-2026-73845)
Vulnerability from cvelistv5 – Published: 2026-08-14 16:45 – Updated: 2026-08-14 18:06
VLAI
EPSS
VEX
Title
CKAN MCP Server: MQA server allowlist bypass via unanchored regex (`isValidMqaServer`)
Summary
CKAN MCP Server is a tool for querying CKAN open data portals. Prior to 0.4.112, the ckan_get_mqa_quality and ckan_get_mqa_quality_details tools in src/tools/quality.ts use isValidMqaServer to validate the server_url parameter with a prefix-only regular expression for dati.gov.it, allowing suffix-host and URL-userinfo values to target an attacker-controlled host and return a spoofed response. This issue is fixed in version 0.4.112.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 17:41 UTC
CWE
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ondata/ckan-mcp-server/securit… | x_refsource_CONFIRM |
| https://github.com/ondata/ckan-mcp-server/commit/… | x_refsource_MISC |
| https://github.com/ondata/ckan-mcp-server/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ondata | ckan-mcp-server |
Affected:
< 0.4.112
|
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Mitigation
Implementation
When applicable, ensure that the regular expression marks beginning and ending string patterns, such as "/^string$/" for Perl.
No CAPEC attack patterns related to this CWE.