by Kastro
Paper/Archive/CVE-2026-81707

CVE-2026-81707

jahlives openssl_encrypt — openssl_encrypt before 1.4.9 ANSI Escape Injection via Identity Email

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
39
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 48.0.480 × 209.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

openssl_encrypt before 1.4.9 fails to sanitize the email field of imported identity documents, allowing attackers to inject ANSI escape sequences that forge the fingerprint verification line displayed to users. Attackers can deliver a crafted identity bundle through normal contact-exchange flows or keyserver responses to manipulate terminal output and display a fraudulent fingerprint, bypassing the out-of-band verification mechanism that protects against key substitution attacks.

Affected

ProductAffectedFixed inSource
openssl_encrypt< 1.4.91.4.9CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorygithub.com/jahlives/openssl_encrypt/security/advisories/GHSA-qjr2-x6mr-8xgfwriteupvulncheck.com/advisories/openssl-encrypt-before-1.4.9-ansi-escape-injection-via-identity-email