CVE-2026-81704

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-27. The CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 3 sources updated this week

Also known asEUVD-2026-67060 (ENISA EUVD) · GHSA-9gxw-4vm6-8q2h (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

openssl_encrypt versions before 1.4.9 contain a weak key derivation vulnerability in the D-Bus CryptoService.EncryptFile handler that uses unstretched SHA-256 instead of Argon2id. Attackers can perform offline password guessing against encrypted files roughly six to seven orders of magnitude faster than documented protection by exploiting the missing key stretching and hash rounds.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
19th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 27, 2026

Last Modified

October 1, 2026

Advisory Details (2)

Auto-updated Aug 27, 2026
Patch available. Sources: github.
Web page

openssl_encrypt before 1.4.9 Weak Key Derivation via D-Bus | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-weak-key-derivation-via-d-bus
GitHub advisoryMentions a patch (unverified)

D-Bus EncryptFile derived keys without password stretching (unstretched SHA-256) · Advisory · jahlives/openssl_encrypt · GitHub

https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-v9r6-grch-fxw7

Vendor Advisories for CVE-2026-81704(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
openssl-encrypt0.2.2 ... 1.4.8 (53 versions)
  • every version up to 1.4.9: fixed in 1.4.9
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 61× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 203 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 103 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  4. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  5. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  6. 2026-10-27 20:02 UTCEG score recompute
  7. 2026-10-27 20:02 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  9. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  10. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-10-25 13:58 UTCEG score recompute
  12. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  13. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  14. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  15. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  16. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-10-20 07:52 UTCEG score recompute
  18. 2026-10-20 07:51 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  19. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  20. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  21. 2026-10-18 03:09 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  23. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  24. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
Show 75 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  2. 2026-10-13 06:16 UTCEG score recompute
  3. 2026-10-13 06:16 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  5. 2026-10-12 14:56 UTCEG score recompute
  6. 2026-10-11 19:20 UTCEG score recompute
  7. 2026-10-11 16:36 UTCEG score recompute
  8. 2026-10-11 13:54 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  11. 2026-10-10 13:47 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  12. 2026-10-10 01:54 UTCEG score recompute
  13. 2026-10-10 01:54 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  14. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  15. 2026-10-09 03:06 UTCEG score recompute
  16. 2026-10-09 03:05 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  18. 2026-10-08 01:20 UTCEG score recompute
  19. 2026-10-08 01:19 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  20. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  21. 2026-10-07 01:07 UTCEG score recompute
  22. 2026-10-07 01:07 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  23. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  24. 2026-10-06 13:11 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  25. 2026-10-06 01:39 UTCEG score recompute
  26. 2026-10-06 01:39 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  27. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  28. 2026-10-05 13:52 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  29. 2026-10-05 02:20 UTCEG score recompute
  30. 2026-10-05 02:20 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  31. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  32. 2026-10-04 14:38 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  33. 2026-10-04 02:46 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  34. 2026-10-03 15:13 UTCEG score recompute
  35. 2026-10-03 15:13 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  36. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  37. 2026-10-03 02:44 UTCEG score recompute
  38. 2026-10-03 02:44 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  39. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  40. 2026-10-02 15:11 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  41. 2026-10-02 03:39 UTCEG score recompute
  42. 2026-10-02 03:39 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  43. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  44. 2026-10-01 15:27 UTCEG score recompute
  45. 2026-10-01 15:27 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  46. 2026-10-01 07:27 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-09-30 19:55 UTCEG score recompute
  48. 2026-09-30 19:55 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  50. 2026-09-30 05:00 UTCEG score recompute
  51. 2026-09-30 05:00 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  52. 2026-09-29 08:47 UTCEG score recompute
  53. 2026-09-29 08:47 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  54. 2026-09-28 21:15 UTCEG score recompute
  55. 2026-09-28 21:15 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  56. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  57. 2026-09-28 05:22 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  58. 2026-09-27 17:50 UTCEG score recompute
  59. 2026-09-27 17:50 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  60. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  61. 2026-09-27 06:16 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  62. 2026-09-26 18:43 UTCEG score recompute
  63. 2026-09-26 18:43 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  64. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  65. 2026-09-25 15:53 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  66. 2026-09-25 04:21 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-09-24 16:48 UTCEG score recompute
  68. 2026-09-24 16:48 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  69. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  70. 2026-09-24 05:15 UTCEG score recompute
  71. 2026-09-24 05:15 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  73. 2026-09-23 17:43 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  74. 2026-09-23 05:57 UTCGHSA enrichmentGHSA-9gxw-4vm6-8q2h · GitHub severity HIGH · GitHub CVSS 7.5
  75. 2026-09-22 18:25 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-81704?
CVE-2026-81704 is a high-severity vulnerability; its CVE record was published on August 27, 2026. openssl_encrypt versions before 1.4.9 contain a weak key derivation vulnerability in the D-Bus CryptoService.EncryptFile handler that uses unstretched SHA-256 instead of Argon2id. Attackers can perform offline password guessing against encrypted files roughly six to seven orders of magnitude faster…
When was CVE-2026-81704 made public?
CVE-2026-81704 was made public on August 12, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 27, 2026. EchelonGraph's copy of the record carries a last-modified date of October 1, 2026; the record at its source may have been updated since.
Is CVE-2026-81704 actively exploited?
CVE-2026-81704 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-81704?
CVE-2026-81704 has a CVSS base score of 7.5 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-81704?
A fix for CVE-2026-81704 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-81704 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-81704

Explore →

Is Your Infrastructure Affected by CVE-2026-81704?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.