openssl_encrypt (pip package openssl-encrypt) versions <= 1.4.8 contain a CWD-relative configuration file resolution flaw in crypt_settings.py, where CONFIG_FILE (originally the absolute per-user path ~/.crypt_settings.json) is reassigned at line 84 to the bare relative name 'crypt_settings.json'. As a result, the legacy Tk GUI's SettingsTab reads and writes KDF settings from crypt_settings.json in the process launch (current working) directory instead of the user's home directory. An attacker who plants a malicious crypt_settings.json (e.g. sha256:1 with all memory-hard KDFs disabled) can silently downgrade encryption performed in that GUI session to roughly one hash round, bypassing the weak-KDF preflight and enabling offline brute-force attacks against the resulting ciphertext. Fixed in 1.4.9.
CVE-2026-81697
Score 5.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-27. a secondary CVSS source baseline 5.5; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.5
- EG Score
- 5.5(high)
- EG Risk
- 29(Track)EG Risk 29/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity55% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 4%
- KEV
- Not listed
Published
August 27, 2026
Last Modified
August 27, 2026
Advisory Details (2)
Auto-updated Aug 27, 2026openssl_encrypt before 1.4.9 KDF Downgrade via CWD-relative Configuration | Advisories | VulnCheck
https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-kdf-downgrade-via-cwd-relative-configurationLegacy GUI reads KDF settings from a CWD-relative crypt_settings.json, enabling a planted KDF downgrade · Advisory · jahlives/openssl_encrypt · GitHub
https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-7j2v-g84w-m75vVendor Advisories for CVE-2026-81697(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 9× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-29 18:04 UTCEG score recompute
- 2026-08-29 18:04 UTCGHSA enrichment
- 2026-08-28 21:42 UTCEPSS rescore
- 2026-08-28 17:45 UTCEG score recompute
- 2026-08-28 17:44 UTCGHSA enrichment
- 2026-08-27 17:25 UTCEG score recompute
- 2026-08-27 16:47 UTCEG score recompute
- 2026-08-27 16:43 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-426
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Dependency Blast Radius
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