CVE-2026-81680 Vulnerability Analysis & Exploit Details

CVE-2026-81680
Vulnerability Scoring

4.0
/10
Moderate Risk

Exploiting CVE-2026-81680 requires specific conditions, leading to a moderate security impact.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Local
    Vulnerability requires local system 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-2026-81680 Details

Status: Analyzed

Last updated: 🕒 03 Sep 2026, 15:06 UTC
Originally published on: 🕔 27 Aug 2026, 17:20 UTC

Time between publication and last update: 6 days

CVSS Release: version 3

CVSS3 Source

disclosure@vulncheck.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2026-81680 Vulnerability Summary

CVE-2026-81680: openssl_encrypt versions before 1.4.9 fail to authenticate recovery-slot presence in envelope-format encrypted files, allowing attackers to remove recovery slots without re-encrypting the payload. Attackers can modify the file header to delete recovery-slot fields and bypass authentication, silently removing recovery paths the owner deliberately added.

Assessing the Risk of CVE-2026-81680

Access Complexity Graph

The exploitability of CVE-2026-81680 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-2026-81680

With low attack complexity and no required privileges, CVE-2026-81680 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

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-2026-81680, 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-2026-81680, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2026-81680 has no significant impact on data confidentiality.
  • Integrity: Low
    Exploiting CVE-2026-81680 may cause minor changes to data without severely impacting its accuracy.
  • Availability: None
    CVE-2026-81680 does not impact system availability.

CVE-2026-81680 References

External References

CWE Common Weakness Enumeration

CWE-347

CAPEC Common Attack Pattern Enumeration and Classification

  • Padding Oracle Crypto Attack CAPEC-463 An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.
  • 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:jahlives:openssl_encrypt:0.2.2:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.2.2:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.2.3:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.2.3:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.2.4:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.2.4:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.2.5:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.2.5:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.2.6:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.2.6:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.3.0:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.3.0:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.3.1:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.3.1:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.3.2:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.3.2:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.3.3:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.3.3:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.4.0:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.4.0:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.4.1:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.4.1:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.4.2:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.4.2:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.4.3:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.4.3:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.4.4:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.4.4:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.5.0:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.5.0:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.5.1:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.5.1:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.5.3:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.5.3:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.6.0:rc1:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.6.0:rc1:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.7.0:rc2:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.7.0:rc2:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.7.1:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.7.1:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.7.2:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.7.2:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.8.0:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.8.0:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.8.1:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.8.1:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.8.2:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.8.2:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:0.9.2:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:0.9.2:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.0.0:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.0.0:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.0.1:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.0.1:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.0.2:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.0.2:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.0.3:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.0.3:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.1.0:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.1.0:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.2.0:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.2.0:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.2.1:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.2.1:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.3.0:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.3.0:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.3.1:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.3.1:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.3.2:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.3.2:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.3.3:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.3.3:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.3.4:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.3.4:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.3.5:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.3.5:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.3.6:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.3.6:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:-:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:-:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta3:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta3:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta4:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta4:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta5:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta5:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta6:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta6:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta7:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta7:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta8:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.0:beta8:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.1:-:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.1:-:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.1:rc1:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.1:rc1:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.1:rc2:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.1:rc2:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.2:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.2:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.3:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.3:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.4:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.4:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.5:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.5:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.6:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.6:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.7:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.7:*:*:*:*:python:*:*
  • cpe:2.3:a:jahlives:openssl_encrypt:1.4.8:*:*:*:*:python:*:*
    cpe:2.3:a:jahlives:openssl_encrypt:1.4.8:*:*:*:*:python:*:*

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