CVE-2026-32144 Vulnerability Analysis & Exploit Details

CVE-2026-32144
Vulnerability Scoring

7.4

/10

Very High Risk

Highly exploitable, CVE-2026-32144 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

Attack Complexity: High
Exploits require significant effort and special conditions.
Attack Vector: Network
Vulnerability is exploitable over a network without physical access.
Privileges Required: None
No privileges are required for exploitation.
Scope: Unchanged
Exploit remains within the originally vulnerable component.
User Interaction: None
No user interaction is necessary for exploitation.

CVE-2026-32144 Details

Status: Analyzed

Last updated: 🕠 23 Apr 2026, 17:32 UTC
Originally published on: 🕐 07 Apr 2026, 13:16 UTC

Time between publication and last update: 16 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVE-2026-32144 Vulnerability Summary

CVE-2026-32144: Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_ocsp module) allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in public_key:pkix_ocsp_validate/5 does not verify that a CA-designated responder certificate was cryptographically signed by the issuing CA. Instead, it only checks that the responder certificate's issuer name matches the CA's subject name and that the certificate has the OCSPSigning extended key usage. An attacker who can intercept or control OCSP responses can create a self-signed certificate with a matching issuer name and the OCSPSigning EKU, and use it to forge OCSP responses that mark revoked certificates as valid. This affects SSL/TLS clients using OCSP stapling, which may accept connections to servers with revoked certificates, potentially transmitting sensitive data to compromised servers. Applications using the public_key:pkix_ocsp_validate/5 API directly are also affected, with impact depending on usage context. This vulnerability is associated with program files lib/public_key/src/pubkey_ocsp.erl and program routines pubkey_ocsp:is_authorized_responder/3. This issue affects OTP from OTP 27.0 until OTP 28.4.2 and 27.3.4.10 corresponding to public_key from 1.16 until 1.20.3 and 1.17.1.2, and ssl from 11.2 until 11.5.4 and 11.2.12.7.

Assessing the Risk of CVE-2026-32144

Access Complexity Graph

The exploitability of CVE-2026-32144 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-32144

CVE-2026-32144 presents a challenge to exploit due to its high attack complexity, but the absence of privilege requirements still makes it a viable target for skilled attackers. A thorough security review is advised.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-32144, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-32144, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: High
Exploiting CVE-2026-32144 can result in unauthorized access to sensitive data, severely compromising data privacy.
Integrity: High
CVE-2026-32144 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
Availability: None
CVE-2026-32144 does not impact system availability.

CVE-2026-32144 References

External References

CWE Common Weakness Enumeration

CWE-295

CAPEC Common Attack Pattern Enumeration and Classification

Creating a Rogue Certification Authority Certificate CAPEC-459 An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
Signature Spoofing by Improper Validation CAPEC-475 An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.

Vulnerable Configurations

cpe:2.3:a:erlang:erlang\/otp:27.0:-:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.0:-:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.0.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.0.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.0:rc1:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.0:rc1:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.0:rc2:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.0:rc2:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.0:rc3:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.0:rc3:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.1.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.1.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.1.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.1.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.1.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.1.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.2.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.6:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.6:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.7:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.7:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.8:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.8:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.9:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:27.3.4.9:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:-:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:-:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:rc1:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:rc1:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:rc2:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:rc2:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:rc3:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:rc3:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:rc4:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.0:rc4:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.1.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.1.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.3.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.3.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.3.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.3.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.3.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.3.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.4.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:28.4.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.16.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.17:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.17:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.17.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.17.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.17.1.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.17.1.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.18:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.18:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.18.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.18.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.18.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.18.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.18.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.18.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.19:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.19:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.20:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.20:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.20.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.20.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.20.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/public_key:1.20.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.6:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.6:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.7:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.7:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.8:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.8:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.9:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.9:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.10:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.10:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.11:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.11:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.2.12.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.3.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.3.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.3.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.3.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.4.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.4.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.4.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.4.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.5.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.5.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.5.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.5.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.5.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/ssl:11.5.3:*:*:*:*:*:*:*

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