CVE-2026-81693

HIGH 7.5

openssl_encrypt before 1.4.9 Denial of Service via QR total field

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

openssl_encrypt before 1.4.9 fails to validate the total field from QR JSON payloads before materializing ranges. Attackers can supply crafted QR images with extremely large total values to trigger unbounded memory allocation and cause denial of service through out-of-memory conditions.

CWE	CWE-789
Vendor	jahlives
Product	openssl_encrypt
Published	Aug 27, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

jahlives / openssl_encrypt

0 < 1.4.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-r23m-gf2m-8www vulncheck.com: https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-denial-of-service-via-qr-total-field