VulnSocial

CVE-2026-81721Patch(jahlives / openssl_encrypt)

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch jahlives openssl_encrypt systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

openssl_encrypt before 1.4.9 fails to validate KDF cost parameters in encrypted file metadata and keystore headers, allowing attackers to trigger unbounded memory allocation. Attackers can craft malicious encrypted files declaring arbitrarily large Argon2, scrypt, or balloon KDF parameters to exhaust system memory and crash the process without authentication.

jahlives CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-400

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • openssl_encrypt

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
jahlives
Products
openssl_encrypt

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-31: 1Patch / Workaround · 2026-08-31: 1Technical Details · 2026-08-31: 108-31
Signal classification1 categories
Patch
1100.0%
Full discourse1 post
  • DFIR Lab@DFIR_Lab
    Patch

    🚨 HIGH Severity CVE-2026-81721 (CVSS 7.5) openssl_encrypt <1.4.9 fails to validate KDF cost parameters, allowing attackers to trigger unbounded memory allocation via crafted encrypted files. No auth required. Patch to 1.4.9+ immediately. #CVE #Vulnerability #PatchNow https://t.co/5uqG9J3nM1

    Post summary

    The tweet alerts to a high‑severity CVE‑2026‑81721 in OpenSSL <1.4.9, noting an unbounded memory allocation flaw, and urges users to upgrade to 1.4.9+ immediately.

    0001058
    121 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appjahlivesopenssl_encrypt-python-

Explore more

Back to dashboardjahlives CVEsopenssl_encrypt vulnerabilities