How severe is CVE-2026-81693?

CVE-2026-81693 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-81693 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-81693?

CVE-2026-81693 affects Jahlives Openssl Encrypt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-81693?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-81693 published?

CVE-2026-81693 was published on 2026-08-27 and last updated on 2026-09-02.

CVE-2026-81693

CVE-2026-81693 is a high-severity vulnerability in Jahlives Openssl Encrypt with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-789.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-789
Affected product: Jahlives Openssl Encrypt
Published: 2026-08-27
Last modified: 2026-09-02

Description

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.

Frequently asked questions

What is CVE-2026-81693?: 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.
How severe is CVE-2026-81693?: CVE-2026-81693 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-81693 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-81693?: CVE-2026-81693 affects Jahlives Openssl Encrypt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-81693?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-81693 published?: CVE-2026-81693 was published on 2026-08-27 and last updated on 2026-09-02.

References

Affected products (1)

cpe:2.3:a:jahlives:openssl_encrypt:*:*:*:*:*:python:*:*

More vulnerabilities in Jahlives Openssl Encrypt

CVE-2026-81702 — Critical (CVSS 9.8): openssl_encrypt before 1.4.9 fails to re-derive and validate fingerprints when loading identities from identity.json,…
CVE-2026-81701 — Critical (CVSS 9.8): openssl_encrypt versions before 1.4.9 use a denylist to identify trusted built-in plugins, allowing unsigned plugins in…
CVE-2026-81700 — Critical (CVSS 9.8): openssl_encrypt versions before 1.4.9 contain a signature verification vulnerability in gpg_runner.verify_detached that…
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CVE-2026-74900 — Critical (CVSS 9.8): openssl_encrypt versions before 1.4.0 contain a critical vulnerability in pqc.py where KEM decapsulation failures…
CVE-2026-74899 — Critical (CVSS 9.8): openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in IsolatedPluginExecutor that exposes…

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