How severe is CVE-2026-74879?

No CVSS score has been assigned to CVE-2026-74879 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-74879?

CVE-2026-74879 affects the following packages: openssl-encrypt (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2026-74879?

Update openssl-encrypt to 1.4.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-74879 is resolved across your whole dependency graph.

How do I detect CVE-2026-74879 in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openssl-encrypt, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2026-74879 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2026-74879 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-74879 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-74879?

CVE-2026-74879 has an EPSS (Exploit Prediction Scoring System) score of 0.4%, placing it in the 38th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2026-74879?

CVE-2026-74879 is classified as CWE-209 (CWE-209). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-74879 published, and has it been updated?

CVE-2026-74879 was published on August 17, 2026 and was last updated on October 21, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍 PyPI

Not in CISA KEV

CVE-2026-74879 — openssl-encrypt

Fix: jahlives/openssl_encrypt@7aa8787

CVE-2026-74879 is a CWE-209 vulnerability in openssl-encrypt. A fix is available for openssl-encrypt — see the affected versions and patch details below.

openssl_encrypt before 1.4.0 Information Disclosure via /ready endpoint

Also known asGHSA-2vhw-q7vh-7xv2PYSEC-2026-3758

Published

Aug 17, 2026

Updated

Oct 21, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 23, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-74879.

EPSS Exploitation Probability

via FIRST.org ↗

0.4%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs38th percentile — riskier than 38% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐍openssl-encrypt

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Summary

The /ready endpoint in openssl_encrypt_server/server.py at lines 159-175 catches database errors and returns the full exception string in the response.

Affected Code

except Exception as e:
    return {"status": "not_ready", "reason": str(e)}

Impact

Database exception messages can leak:

Database hostnames and IP addresses
Connection parameters and port numbers
Driver version information
Potentially database credentials if included in connection string errors

This information is available to unauthenticated callers.

Recommended Fix

Return a generic error message: {"status": "not_ready", "reason": "database unavailable"}
Log the full exception server-side for debugging

Fix

Fixed in commit 7aa8787 on branch releases/1.4.x — replaced str(e) with generic "database check failed" message; full exception logged server-side at WARNING level.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`openssl-encrypt`	all versions	1.4.0`pip install --upgrade 'openssl-encrypt==1.4.0'`

Affected Products

1 product · 1 configurations

Application

openssl encryptjahlives

< 1.4.0

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openssl-encrypt, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update openssl-encrypt to 1.4.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-74879 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### Summary The `/ready` endpoint in `openssl_encrypt_server/server.py` at **lines 159-175** catches database errors and returns the full exception string in the response. ### Affected Code ```python except Exception as e: return {"status": "not_ready", "reason": str(e)} ``` ### Impact Database exception messages can leak: - Database hostnames and IP addresses - Connection parameters and port numbers - Driver version information - Potentially database credentials if included in connection string errors This information is available to unauthenticated callers. ### Recommended Fix -

O3 Security · Impact-Aware SCA

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