CVE-2026-70454

HIGHPre-NVD 8.08.0
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (7th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — Patch released this week
8.0EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS certificate validation vulnerability that allows on-path attackers to intercept encrypted sessions by presenting self-signed or otherwise invalid certificates. Attackers can exploit the failure to validate server TLS certificates against a trusted CA or verify certificate hostname matching to decrypt or tamper with rsync session content without detection by the client.

CVSS v3
8.0
EG Score
8.0HIGHmedium confidence
EG Risk
36
EG Risk 36/100

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 computed (value × EchelonGraph’s weight)
Severity80% × 45%
The EG Score, 8.0 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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 13, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Aug 13, 2026
Patch available. Sources: github, github_release.
Web page

rsync < 3.5.0 TLS Certificate Validation Bypass via SSL/OpenSSL Mode | Advisories | VulnCheck

https://www.vulncheck.com/advisories/rsync-tls-certificate-validation-bypass-via-ssl-openssl-mode
GitHub release Patch Available

v3.5.0

Patch available: RsyncProject/rsync v3.5.0

https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
GitHub advisoryMentions a patch (unverified)

rsync: rsync-ssl establishes an unauthenticated TLS connection (no CA verification; no stunnel hostname binding) · Advisory · RsyncProject/rsync · GitHub

Affected: 2020 by Matt McCutchen; the conservative GnuTLS refusal is Greg Kroah-Hartman's

https://github.com/RsyncProject/rsync/security/advisories/GHSA-3c3x-ww2w-5r5p

Vendor Advisories for CVE-2026-70454(3)

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

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcostmanagement/costmanagement-ui-rhel10:17914608512026-10-08redhat
redhatopenshift/ose-rhel-coreos-9:4.22.9.8.202609221802-02026-09-29redhat
redhatrsync-0:3.5.0-3.el10_22026-09-14redhat
redhatrsync-0:3.2.7-1.el9_82026-09-14redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(7 across 7 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.5.0-r0: fixed in 3.5.0-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.5.0-r0: fixed in 3.5.0-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.5.0-r0: fixed in 3.5.0-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.5.0-r0: fixed in 3.5.0-r0
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
rsync3.2.7-1 ... 3.5.1+ds1-1 (32 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
rsync3.4.1+ds1-5 ... 3.4.4+ds1-1 (13 versions)
  • every version up to 3.5.0+ds1-0+deb13u1: fixed in 3.5.0+ds1-0+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
rsync3.4.1+ds1-5 ... 3.4.4+ds1-1 (9 versions)
  • every version up to 3.5.0+ds1-1: fixed in 3.5.0+ds1-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 80× 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 136 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 36 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-70454?
CVE-2026-70454 is a high-severity vulnerability; its CVE record was published on August 13, 2026. rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS certificate validation vulnerability that allows on-path attackers to intercept encrypted sessions by presenting self-signed or otherwise invalid certificates. Attackers can exploit the failure to…
When was CVE-2026-70454 made public?
CVE-2026-70454 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 13, 2026. EchelonGraph's copy of the record carries a last-modified date of September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-70454 actively exploited?
CVE-2026-70454 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70454?
CVE-2026-70454 has a CVSS base score of 8.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-70454?
A fix for CVE-2026-70454 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-70454 are linked in the Vendor Advisories panel on this page.

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