CVE-2026-70452

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 61% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — Patch released this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

A fix is available — apply it.

rsync 3.1.0 before 3.5.0 contains an access control bypass vulnerability that allows remote attackers to circumvent hosts deny rules by inducing DNS resolution failures during hostname-based access control evaluation. When a DNS lookup for a hostname-based deny rule fails, the daemon skips the rule rather than defaulting to a deny decision, enabling attackers who can trigger DNS failures to bypass module-level IP access controls and gain unauthorized access to restricted module file trees.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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 computed
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 8, 2026

Advisory Details (3)

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

rsync 3.1.0 < 3.5.0 Access Control Bypass via DNS Resolution Failure | Advisories | VulnCheck

https://www.vulncheck.com/advisories/rsync-access-control-bypass-via-dns-resolution-failure
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 Patch Available

rsync: `hosts deny` fails OPEN when a configured hostname cannot be resolved, admitting the host it was meant to block · Advisory · RsyncProject/rsync · GitHub

https://github.com/RsyncProject/rsync/security/advisories/GHSA-6692-28cx-wpqq

Vendor Advisories for CVE-2026-70452(1)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
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 rangeFixed inDependents
rsync—3.5.0-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
rsync—3.5.0-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
rsync—3.5.0-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
rsync—3.5.0-r0—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
rsync3.2.7-1 ... 3.5.0+ds1-2 (30 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
rsync3.4.1+ds1-5 ... 3.5.0+ds1-2 (15 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
rsync3.4.1+ds1-5 ... 3.4.4+ds1-1 (9 versions)3.5.0+ds1-1—

Weakness Classification(2)

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 25× in last 7d / 94× 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.

Showing the most recent 100 of 115 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-70452?
CVE-2026-70452 is a high vulnerability published on August 13, 2026. rsync 3.1.0 before 3.5.0 contains an access control bypass vulnerability that allows remote attackers to circumvent hosts deny rules by inducing DNS resolution failures during hostname-based access control evaluation. When a DNS lookup for a hostname-based deny rule fails, the daemon skips the rule…
When was CVE-2026-70452 disclosed?
CVE-2026-70452 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70452 actively exploited?
CVE-2026-70452 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 60.7% of all scored CVEs.
What is the CVSS score of CVE-2026-70452?
CVE-2026-70452 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-70452?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70452, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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