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18 vulnerabilities found for phpseclib by phpseclib
CVE-2026-44167 (GCVE-0-2026-44167)
Vulnerability from nvd – Published: 2026-05-12 17:22 – Updated: 2026-05-14 19:24
VLAI
Title
phpseclib: CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()
Summary
phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/phpseclib/phpseclib/security/a… | x_refsource_CONFIRM |
| https://github.com/phpseclib/phpseclib/commit/d53… | x_refsource_MISC |
Impacted products
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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CVE-2026-40194 (GCVE-0-2026-40194)
Vulnerability from nvd – Published: 2026-04-10 20:24 – Updated: 2026-05-08 15:18
VLAI
Title
phpseclib has a variable-time HMAC comparison in SSH2::get_binary_packet() using != instead of hash_equals()
Summary
phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, phpseclib\Net\SSH2::get_binary_packet() uses PHP's != operator to compare a received SSH packet HMAC against the locally computed HMAC. != on equal-length binary strings in PHP uses memcmp(), which short-circuits on the first differing byte. This is a real variable-time comparison (CWE-208), proven by scaling benchmarks. This vulnerability is fixed in 3.0.51, 2.0.53, and 1.0.28.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/phpseclib/phpseclib/security/a… | x_refsource_CONFIRM |
| https://github.com/phpseclib/phpseclib/commit/ffe… | x_refsource_MISC |
| https://github.com/phpseclib/phpseclib/releases/t… | x_refsource_MISC |
| https://github.com/phpseclib/phpseclib/releases/t… | x_refsource_MISC |
| https://github.com/phpseclib/phpseclib/releases/t… | x_refsource_MISC |
Impacted products
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"tags": [
"x_refsource_MISC"
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"url": "https://github.com/phpseclib/phpseclib/releases/tag/3.0.51"
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CVE-2026-32935 (GCVE-0-2026-32935)
Vulnerability from nvd – Published: 2026-03-20 02:48 – Updated: 2026-05-08 15:19
VLAI
Title
phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack
Summary
phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49 are vulnerable to a to padding oracle timing attack when using AES in CBC mode. This issue has been fixed in versions 1.0.27, 2.0.52 and 3.0.50.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/phpseclib/phpseclib/security/a… | x_refsource_CONFIRM |
| https://github.com/phpseclib/phpseclib/commit/ccc… | x_refsource_MISC |
Impacted products
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CVE-2023-52892 (GCVE-0-2023-52892)
Vulnerability from nvd – Published: 2024-06-27 00:00 – Updated: 2024-08-21 20:02
VLAI
Summary
In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
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CVE-2024-27355 (GCVE-0-2024-27355)
Vulnerability from nvd – Published: 2024-03-01 00:00 – Updated: 2024-08-13 13:38
VLAI
Summary
An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. When processing the ASN.1 object identifier of a certificate, a sub identifier may be provided that leads to a denial of service (CPU consumption for decodeOID).
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
4 references
Impacted products
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CVE-2024-27354 (GCVE-0-2024-27354)
Vulnerability from nvd – Published: 2024-03-01 00:00 – Updated: 2025-04-22 15:44
VLAI
Summary
An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when attempting to fix CVE-2023-27560.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
4 references
Impacted products
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CVE-2023-49316 (GCVE-0-2023-49316)
Vulnerability from nvd – Published: 2023-11-27 00:00 – Updated: 2024-08-02 21:53
VLAI
Summary
In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2023-27560 (GCVE-0-2023-27560)
Vulnerability from nvd – Published: 2023-03-03 00:00 – Updated: 2025-03-06 20:19
VLAI
Summary
Math/PrimeField.php in phpseclib 3.x before 3.0.19 has an infinite loop with composite primefields.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
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CVE-2021-30130 (GCVE-0-2021-30130)
Vulnerability from nvd – Published: 2021-04-06 00:00 – Updated: 2024-08-03 22:24
VLAI
Summary
phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
5 references
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CVE-2026-44167 (GCVE-0-2026-44167)
Vulnerability from cvelistv5 – Published: 2026-05-12 17:22 – Updated: 2026-05-14 19:24
VLAI
Title
phpseclib: CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()
Summary
phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/phpseclib/phpseclib/security/a… | x_refsource_CONFIRM |
| https://github.com/phpseclib/phpseclib/commit/d53… | x_refsource_MISC |
Impacted products
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CVE-2026-40194 (GCVE-0-2026-40194)
Vulnerability from cvelistv5 – Published: 2026-04-10 20:24 – Updated: 2026-05-08 15:18
VLAI
Title
phpseclib has a variable-time HMAC comparison in SSH2::get_binary_packet() using != instead of hash_equals()
Summary
phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, phpseclib\Net\SSH2::get_binary_packet() uses PHP's != operator to compare a received SSH packet HMAC against the locally computed HMAC. != on equal-length binary strings in PHP uses memcmp(), which short-circuits on the first differing byte. This is a real variable-time comparison (CWE-208), proven by scaling benchmarks. This vulnerability is fixed in 3.0.51, 2.0.53, and 1.0.28.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/phpseclib/phpseclib/security/a… | x_refsource_CONFIRM |
| https://github.com/phpseclib/phpseclib/commit/ffe… | x_refsource_MISC |
| https://github.com/phpseclib/phpseclib/releases/t… | x_refsource_MISC |
| https://github.com/phpseclib/phpseclib/releases/t… | x_refsource_MISC |
| https://github.com/phpseclib/phpseclib/releases/t… | x_refsource_MISC |
Impacted products
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CVE-2026-32935 (GCVE-0-2026-32935)
Vulnerability from cvelistv5 – Published: 2026-03-20 02:48 – Updated: 2026-05-08 15:19
VLAI
Title
phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack
Summary
phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49 are vulnerable to a to padding oracle timing attack when using AES in CBC mode. This issue has been fixed in versions 1.0.27, 2.0.52 and 3.0.50.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/phpseclib/phpseclib/security/a… | x_refsource_CONFIRM |
| https://github.com/phpseclib/phpseclib/commit/ccc… | x_refsource_MISC |
Impacted products
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CVE-2023-52892 (GCVE-0-2023-52892)
Vulnerability from cvelistv5 – Published: 2024-06-27 00:00 – Updated: 2024-08-21 20:02
VLAI
Summary
In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
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CVE-2024-27355 (GCVE-0-2024-27355)
Vulnerability from cvelistv5 – Published: 2024-03-01 00:00 – Updated: 2024-08-13 13:38
VLAI
Summary
An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. When processing the ASN.1 object identifier of a certificate, a sub identifier may be provided that leads to a denial of service (CPU consumption for decodeOID).
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
4 references
Impacted products
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CVE-2024-27354 (GCVE-0-2024-27354)
Vulnerability from cvelistv5 – Published: 2024-03-01 00:00 – Updated: 2025-04-22 15:44
VLAI
Summary
An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when attempting to fix CVE-2023-27560.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
4 references
Impacted products
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CVE-2023-49316 (GCVE-0-2023-49316)
Vulnerability from cvelistv5 – Published: 2023-11-27 00:00 – Updated: 2024-08-02 21:53
VLAI
Summary
In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2023-27560 (GCVE-0-2023-27560)
Vulnerability from cvelistv5 – Published: 2023-03-03 00:00 – Updated: 2025-03-06 20:19
VLAI
Summary
Math/PrimeField.php in phpseclib 3.x before 3.0.19 has an infinite loop with composite primefields.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
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CVE-2021-30130 (GCVE-0-2021-30130)
Vulnerability from cvelistv5 – Published: 2021-04-06 00:00 – Updated: 2024-08-03 22:24
VLAI
Summary
phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
5 references
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"name": "[debian-lts-announce] 20221117 [SECURITY] [DLA 3197-1] phpseclib security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00024.html"
},
{
"name": "[debian-lts-announce] 20221117 [SECURITY] [DLA 3198-1] php-phpseclib security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00025.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-30130",
"datePublished": "2021-04-06T00:00:00.000Z",
"dateReserved": "2021-04-05T00:00:00.000Z",
"dateUpdated": "2024-08-03T22:24:59.565Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}