CVE-2026-70463

HIGHPre-NVD 8.18.1
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (30th 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 — 3 sources updated this week

Also known asEUVD-2026-58041 (ENISA EUVD)Source: ENISA EUVD

8.1EG
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: 0.4%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

rsync 3.1.0 before 3.5.0 contains an authorization bypass in auth users directive parsing. The auth users parser uses comma-only tokenization when splitting the user list, which fails to correctly handle entries of the form @Group Name where the group name contains a space. The space within the group name causes the parser to split the entry at the space boundary, discarding the deny rule associated with the group. An authenticated user whose username or group membership would be denied by an @Group Name auth users entry can connect to a restricted module because the deny rule is silently discarded during parsing.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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)
Severity81% × 45%
Impact severity (EG Severity): CVSS 8.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
0.4%
EPSS %ILE
30th
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 (8.1): severity, escalated by confirmed exploitation. This CVE's 8.1 is its impact severity (EG Severity), not escalated.

EG Severity
8.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.4% 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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade 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 every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (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 13, 2026

Last Modified

October 24, 2026

Advisory Details (3)

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

rsync 3.1.0 < 3.5.0 Authorization Bypass via auth users Directive Parsing | Advisories | VulnCheck

https://www.vulncheck.com/advisories/rsync-authorization-bypass-via-auth-users-directive-parsing
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: "auth users" ignores documented comma-only parsing, silently skipping a deny/read-only rule · Advisory · RsyncProject/rsync · GitHub

https://github.com/RsyncProject/rsync/security/advisories/GHSA-pfj8-79vq-xgvr

Vendor Advisories for CVE-2026-70463(3)

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

Patch Availability(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcostmanagement/costmanagement-ui-rhel10:17914608512026-10-08redhat
redhatrsync-0:3.1.3-28.el8_102026-09-30redhat
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—
  • 3.1.0 up to 3.5.0-r0: fixed in 3.5.0-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • 3.1.0 up to 3.5.0-r0: fixed in 3.5.0-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • 3.1.0 up to 3.5.0-r0: fixed in 3.5.0-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • 3.1.0 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 9× in last 7d / 55× 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 175 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 75 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 0.4% · 30th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  4. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  5. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  6. 2026-10-27 21:08 UTCEG score recompute
  7. 2026-10-27 21:08 UTCVendor advisory
  8. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  9. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  10. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  11. 2026-10-25 14:08 UTCEG score recompute
  12. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  13. 2026-10-24 15:27 UTCVendor advisory
  14. 2026-10-23 18:26 UTCEG score recompute
  15. 2026-10-23 18:26 UTCVendor advisory
  16. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  17. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  18. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  19. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  20. 2026-10-20 08:55 UTCEG score recompute
  21. 2026-10-20 08:55 UTCVendor advisory
  22. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  23. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  24. 2026-10-18 03:18 UTCEG score recompute
  25. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 28th percentile
Show 75 more
  1. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  2. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  3. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  4. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  5. 2026-10-13 09:01 UTCEG score recompute
  6. 2026-10-13 09:01 UTCVendor advisory
  7. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  8. 2026-10-12 15:43 UTCEG score recompute
  9. 2026-10-11 19:29 UTCEG score recompute
  10. 2026-10-11 16:44 UTCEG score recompute
  11. 2026-10-11 14:05 UTCEG score recompute
  12. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  13. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  14. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  15. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  17. 2026-10-07 01:20 UTCEG score recompute
  18. 2026-10-07 01:20 UTCVendor advisory
  19. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  20. 2026-10-06 13:23 UTCEG score recompute
  21. 2026-10-06 13:23 UTCVendor advisory
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  23. 2026-10-05 14:38 UTCEG score recompute
  24. 2026-10-05 14:38 UTCVendor advisory
  25. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  26. 2026-10-04 22:21 UTCVendor advisory
  27. 2026-10-04 07:16 UTCVendor advisory
  28. 2026-10-03 19:49 UTCEG score recompute
  29. 2026-10-03 19:49 UTCVendor advisory
  30. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  31. 2026-10-02 19:22 UTCEG score recompute
  32. 2026-10-02 19:22 UTCVendor advisory
  33. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  34. 2026-10-02 07:34 UTCEG score recompute
  35. 2026-10-02 07:34 UTCVendor advisory
  36. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  37. 2026-10-01 09:19 UTCVendor advisory
  38. 2026-09-30 21:47 UTCEG score recompute
  39. 2026-09-30 21:47 UTCVendor advisory
  40. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  41. 2026-09-29 04:05 UTCEG score recompute
  42. 2026-09-29 04:05 UTCVendor advisory
  43. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  44. 2026-09-28 12:15 UTCVendor advisory
  45. 2026-09-28 00:47 UTCEG score recompute
  46. 2026-09-28 00:47 UTCVendor advisory
  47. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  48. 2026-09-27 09:44 UTCEG score recompute
  49. 2026-09-27 09:44 UTCVendor advisory
  50. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  51. 2026-09-25 03:33 UTCEG score recompute
  52. 2026-09-25 03:33 UTCVendor advisory
  53. 2026-09-24 08:17 UTCVendor advisory
  54. 2026-09-23 20:50 UTCEG score recompute
  55. 2026-09-23 20:50 UTCVendor advisory
  56. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  57. 2026-09-23 08:28 UTCVendor advisory
  58. 2026-09-22 21:01 UTCEG score recompute
  59. 2026-09-22 21:01 UTCVendor advisory
  60. 2026-09-22 08:38 UTCVendor advisory
  61. 2026-09-21 21:10 UTCEG score recompute
  62. 2026-09-21 21:10 UTCVendor advisory
  63. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  64. 2026-09-21 09:43 UTCVendor advisory
  65. 2026-09-20 22:14 UTCEG score recompute
  66. 2026-09-20 22:14 UTCVendor advisory
  67. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  68. 2026-09-20 10:47 UTCVendor advisory
  69. 2026-09-19 23:10 UTCEG score recompute
  70. 2026-09-19 23:10 UTCVendor advisory
  71. 2026-09-19 11:13 UTCVendor advisory
  72. 2026-09-18 23:26 UTCEG score recompute
  73. 2026-09-18 23:26 UTCVendor advisory
  74. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  75. 2026-09-18 11:58 UTCVendor advisory

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

Frequently asked(5)

What is CVE-2026-70463?
CVE-2026-70463 is a high-severity vulnerability; its CVE record was published on August 13, 2026. rsync 3.1.0 before 3.5.0 contains an authorization bypass in auth users directive parsing. The auth users parser uses comma-only tokenization when splitting the user list, which fails to correctly handle entries of the form @Group Name where the group name contains a space. The space within the…
When was CVE-2026-70463 made public?
CVE-2026-70463 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 October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-70463 actively exploited?
CVE-2026-70463 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70463?
CVE-2026-70463 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-70463?
A fix for CVE-2026-70463 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-70463 are linked in the Vendor Advisories panel on this page.

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