Common Weakness Enumeration
CWE-1289
AllowedImproper Validation of Unsafe Equivalence in Input
Abstraction: Base · Status: Incomplete
The product receives an input value that is used as a resource identifier or other type of reference, but it does not validate or incorrectly validates that the input is equivalent to a potentially-unsafe value.
61 vulnerabilities reference this CWE, most recent first.
CVE-2026-89049 (GCVE-0-2026-89049)
Vulnerability from cvelistv5 – Published: 2026-09-10 18:34 – Updated: 2026-09-10 18:57
VLAI
EPSS
VEX
Title
Server-side request forgery in the Session Manager port forwarding functionality in AWS Systems Manager Agent
Summary
A server-side request forgery issue due to improper validation of equivalent address representations in the port forwarding to remote hosts functionality in Amazon AWS Systems Manager Agent (SSM Agent) before 3.3.4851.0 on all platforms might allow an authenticated remote user to bypass the remote destination denylist and reach link-local endpoints, potentially obtaining the temporary IAM role credentials of a managed instance and acting with that role's permissions from outside the instance, via a crafted destination host value that uses an alternate representation of a denied link-local address.
To remediate this issue, users should upgrade to version 3.3.4851.0 or later.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 18:57 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/aws/amazon-ssm-agent/releases/… | patch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/aws/amazon-ssm-agent/security/… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | Amazon SSM Agent |
Affected:
0 , < 3.3.4851.0
(custom)
cpe:2.3:a:aws:amazon_ssm_agent:*:*:*:*:*:*:*:* |
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CVE-2026-76977 (GCVE-0-2026-76977)
Vulnerability from cvelistv5 – Published: 2026-09-08 00:13 – Updated: 2026-09-08 10:34
VLAI
EPSS
VEX
Title
Clickjacking vulnerability in SAPUI5(Frame Options Allowlist)
Summary
SAP UI5 does not sufficiently validate the parent frame's origin against the configured allowlist. An unauthenticated attacker could host a malicious page to bypass framing restrictions. If an authenticated victim visits the attacker's page and interacts with it, the attacker could trick the victim into performing unintended actions, resulting in a low impact on integrity. There is no impact on confidentiality and availability.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 10:05 UTC
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP_SE | SAPUI5(Frame Options Allowlist) |
Affected:
SAP_UI 750
Affected: 754 Affected: 755 Affected: 756 Affected: 757 Affected: 758 Affected: 816 Affected: UI_700 200 |
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CVE-2026-74994 (GCVE-0-2026-74994)
Vulnerability from cvelistv5 – Published: 2026-09-01 14:45 – Updated: 2026-09-08 01:10
VLAI
EPSS
VEX
Title
inets, httpd: Authentication Bypass via Directory Namespace Collapse in httpd mod_auth
Summary
The mod_auth module in OTP's inets httpd server, when configured with dets or mnesia authentication backends and multiple directory configuration blocks, collapses all directory blocks into a single shared user/group namespace. A user added to one protected directory is accepted as valid for all other protected directories on the same server instance.
This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:57 UTC
Assigner
References
6 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Erlang | OTP |
Unknown:
0 , < 17.0
(otp)
Affected: 17.0 , < 27.3.4.17 (otp) Affected: 28.0 , < 28.5.0.6 (otp) Affected: 29.0 , < 29.0.6 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
|
| Erlang | OTP |
Unknown:
0 , < 5.10
(otp)
Affected: 5.10 , < 9.3.2.7 (otp) Affected: 9.4 , < 9.6.2.3 (otp) Affected: 9.7 , < 9.7.2 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
|
| Erlang | OTP |
Affected:
84adefa331c4159d432d22840663c38f155cd4c1 , < *
(git)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
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CVE-2026-60074 (GCVE-0-2026-60074)
Vulnerability from cvelistv5 – Published: 2026-07-30 13:42 – Updated: 2026-09-02 12:22
VLAI
EPSS
VEX
Title
Date::Manip versions through 7.00 for Perl return corrupted dates via non-ASCII decimal digits that pass the numeric range tests in check
Summary
Date::Manip versions through 7.00 for Perl return corrupted dates via non-ASCII decimal digits that pass the numeric range tests in check.
The parse regexes capture year, month and day with the `\d` shorthand, which on a character string matches the whole Unicode decimal digit property `\p{Nd}` and not just `[0-9]`. Date::Manip::Base::check then validates the captured fields with numeric comparisons alone (`$y<1 || $y>9999`, `$m<1 || $m>12`, `$d<1 || $d>$days`), and _parse_check stores the numified fields (`$y+0`). Perl truncates a string at the first character that is not an ASCII digit, so a field whose leading characters are ASCII digits numifies to an in-range prefix and satisfies every test: a year field of three ASCII digits followed by U+0664 ARABIC-INDIC DIGIT FOUR numifies to 202, giving the year 0202, and one non-ASCII digit in the month or day field shifts those fields the same way. The hour, minute and second fields match explicit ASCII character classes (`0?[0-9]`, `[0-5][0-9]`) and do not shift, though a non-ASCII digit in a fractional hour or minute field truncates the fraction.
Any caller that passes an untrusted character string to ParseDate() or Date::Manip::Date->parse() can get back a date that differs from the string it parsed, with no parse error. Where the parsed date gates logic such as an expiry check or a retention window, the shift goes unnoticed.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 17:57 UTC
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Assigner
References
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CVE-2026-50090 (GCVE-0-2026-50090)
Vulnerability from cvelistv5 – Published: 2026-06-12 15:02 – Updated: 2026-06-12 15:49
VLAI
EPSS
VEX
Title
Aqara OAuth redirect_uri validation bypass
Summary
The Aqara Cloud OAuth Authorization Endpoint (open-cn.aqara.com/oauth/authorize) is vulnerable to a redirect bypass due to lax controls on domain matching, which is an instance of "CWE-1289: Improper Validation of Unsafe Equivalence in Input" and has an estimated CVSS of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N (9.3 Critical).
Severity
9.3 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-12 15:49 UTC
CWE
- CWE-1289 - Improper validation of unsafe equivalence in input
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/xn0tsa/theres-no-place-like-home | technical-description |
| https://www.runzero.com/advisories/aqara-oauth-re… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Aqara | Cloud OAuth Authorization Endpoint |
Affected:
2026-04-20 , < 0
(date)
|
Date Public
2026-06-12 15:00
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CVE-2026-49942 (GCVE-0-2026-49942)
Vulnerability from cvelistv5 – Published: 2026-06-04 16:07 – Updated: 2026-06-04 17:45
VLAI
EPSS
VEX
Title
Net::CIDR::Set versions through 0.20 for Perl did not validate network masks
Summary
Net::CIDR::Set versions through 0.20 for Perl did not validate network masks.
The mask portion of a network mask could contain Unicode digits such as the Arabic-Indic One (U+0661), or non-digits, which were ignored. This could allow network masks to accept larger networks.
Leading zeros were also accepted, but treated as decimal instead of octal. This could lead to confusion about what networks are acceptable.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-04 17:42 UTC
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://metacpan.org/release/RRWO/Net-CIDR-Set-0.… | release-notes |
| https://nvd.nist.gov/vuln/detail/CVE-2025-40911 | related |
| https://nvd.nist.gov/vuln/detail/CVE-2026-45191 | related |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RRWO | Net::CIDR::Set |
Affected:
0 , ≤ 0.20
(custom)
|
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CVE-2026-49940 (GCVE-0-2026-49940)
Vulnerability from cvelistv5 – Published: 2026-06-04 16:07 – Updated: 2026-06-04 17:36
VLAI
EPSS
VEX
Title
Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks
Summary
Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks.
Unicode digits such as the Arabic-Indic One (U+0661) were accepted but not properly parsed as numbers. This could allow network masks to accept larger networks.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-04 17:33 UTC
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://metacpan.org/release/RRWO/Net-CIDR-Set-0.… | release-notes |
| https://nvd.nist.gov/vuln/detail/CVE-2025-40911 | related |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RRWO | Net::CIDR::Set |
Affected:
0 , ≤ 0.20
(custom)
|
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CVE-2026-47729 (GCVE-0-2026-47729)
Vulnerability from cvelistv5 – Published: 2026-07-16 16:13 – Updated: 2026-07-17 18:07
VLAI
EPSS
VEX
Title
Squid: Memory disclosure in FTP gateway
Summary
Squid is a caching proxy for the Web. Prior to 7.6, due to an improper validation of syntactic correctness of input in the FTP gateway (src/clients/FtpGateway.cc), Squid is vulnerable to an out-of-bounds read: when a listing entry date in the TypeA or TypeB directory-listing formats is not followed by a filename, parsing was not restricted to the input buffer, so a trusted client accessing a misbehaving FTP server through Squid's gateway feature could read memory from random unrelated transactions. This issue is fixed in version 7.6.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-16 17:52 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/squid-cache/squid/security/adv… | x_refsource_CONFIRM |
| https://github.com/squid-cache/squid/pull/2408 | x_refsource_MISC |
| https://github.com/squid-cache/squid/pull/2409 | x_refsource_MISC |
| https://github.com/squid-cache/squid/commit/865a1… | x_refsource_MISC |
| https://github.com/squid-cache/squid/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| squid-cache | squid |
Affected:
< 7.6
|
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CVE-2026-47674 (GCVE-0-2026-47674)
Vulnerability from cvelistv5 – Published: 2026-05-28 15:29 – Updated: 2026-06-02 18:15
VLAI
EPSS
VEX
Title
Hono: IP Restriction bypasses static deny rules for non-canonical IPv6
Summary
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware (hono/ip-restriction) compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6 representations of an address already listed in a static rule — such as compressed forms, explicit-zero forms, or hex-notation IPv4-mapped addresses — do not match the normalized rule entry, causing the rule to be silently skipped. This vulnerability is fixed in 4.12.21.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 18:14 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/honojs/hono/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-46644 (GCVE-0-2026-46644)
Vulnerability from cvelistv5 – Published: 2026-07-14 20:48 – Updated: 2026-07-15 12:52
VLAI
EPSS
VEX
Title
symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload decodes to ASCII-only: insecure equivalence
Summary
Symfony Polyfill backports PHP features and provides compatibility layers for extensions and functions. From 1.17.1 until 1.38.1, symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload is empty or decodes to ASCII-only code points because Idn::process() does not enforce the UTS #46 revision 33 requirement that decoded ACE labels contain at least one non-ASCII code point. Originally unequal domain names can be regarded as equal, which can lead to blacklist bypassing, inconsistent URL parsing, and server-side request forgery in applications using the polyfill to canonicalise or compare hostnames. This issue is fixed in version 1.38.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 12:52 UTC
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/symfony/polyfill/security/advi… | x_refsource_CONFIRM |
| https://github.com/symfony/polyfill/commit/1be936… | x_refsource_MISC |
| https://github.com/symfony/polyfill/releases/tag/… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| symfony | polyfill |
Affected:
>= 1.17.1, < 1.38.1
|
|
| symfony | polyfill-intl-idn |
Affected:
>= 1.17.1, < 1.38.1
|
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Mitigation MIT-5
Implementation
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
No CAPEC attack patterns related to this CWE.