CVE-2026-81680

openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal

9.3 CriticalFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.20%Unchanged since Aug 28, 2026

What each source reports

CVE List Score used 9.3

openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal

Record: CVE-2026-81680
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-347
Updated: 2026-11-02

EUVDEUVD-2026-67036 9.3

Record: EUVD-2026-67036
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-59ww-7vhf-hj2q 9.3

openssl_encrypt versions before 1.4.9 fail to authenticate recovery-slot presence in envelope...

Record: GHSA-59ww-7vhf-hj2q
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-347
Updated: 2026-11-02

NVD 9.3

Record: CVE-2026-81680
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-347
Updated: 2026-11-02

OSV 9.3

openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal

Record: CVE-2026-81680
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness: CWE-347
Updated: 2026-11-02

OSVPYSEC-2026-3957 5.3

Record: PYSEC-2026-3957
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Updated: 2026-11-02

Affected products

jahlives openssl encrypt

Affected packages

Affected packages
Package	Affected	Fixed
`openssl-encrypt` PyPI	before 1.4.9, plus listed versions 0.2.20.2.30.2.40.2.50.2.6 Show 45 moreShow less 0.3.00.3.10.3.20.3.30.4.00.4.10.4.20.4.30.4.40.5.00.5.10.5.30.6.0rc10.7.0rc20.7.10.7.20.8.00.8.10.8.20.9.21.0.01.0.11.0.21.0.31.1.01.2.01.2.11.3.01.3.11.3.21.3.31.3.41.3.51.4.01.4.0b31.4.0b41.4.0b51.4.0b61.4.0b71.4.0b81.4.11.4.1rc21.4.21.4.41.4.5	1.4.9

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-81680 is a critical vulnerability (CVSS 9.3) in Jahlives Openssl Encrypt, published August 27, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 10th percentile. Fixed in openssl-encrypt 1.4.9.

References

This page doesn't list everything

Left out here: 3 versions. The JSON record has them.