CVE-2026-53784

HIGHPre-NVD 7.17.1
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (14th 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

Also known asEUVD-2026-58091 (ENISA EUVD)Source: ENISA EUVD

7.1EG
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: 0.2%CVSS: 7.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
32
EG Risk 32/100

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)
Severity71% × 45%
Impact severity (EG Severity): CVSS 7.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
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
14th
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 (7.1): severity, escalated by confirmed exploitation. This CVE's 7.1 is its impact severity (EG Severity), not escalated.

EG Severity
7.1 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
0.2% 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; Track* at high (mission-essential systems).CISA BOD 26-04: 14 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 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.

The score's inputs: 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

October 24, 2026

Advisory Details (3)

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

rsync < 3.5.0 Path Traversal via Symlink Module Root | Advisories | VulnCheck

https://www.vulncheck.com/advisories/rsync-path-traversal-via-symlink-module-root
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: daemon module-root chdir escape under "use chroot = no" · Advisory · RsyncProject/rsync · GitHub

Affected: 3.5.0. (Precise introduced-in ranges being finalised.)

https://github.com/RsyncProject/rsync/security/advisories/GHSA-ffg2-fr5g-3rxw

Vendor Advisories for CVE-2026-53784(4)

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—
  • 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 8× in last 7d / 50× 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 166 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 66 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

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

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

Frequently asked(5)

What is CVE-2026-53784?
CVE-2026-53784 is a high-severity vulnerability; its CVE record was published on August 13, 2026. rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization…
When was CVE-2026-53784 made public?
CVE-2026-53784 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-2026-53784 actively exploited?
CVE-2026-53784 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53784?
CVE-2026-53784 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-53784?
A fix for CVE-2026-53784 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53784 are linked in the Vendor Advisories panel on this page.

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