CVE-2026-44885

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 53% 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, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, Portainer's backup restore feature accepts a .tar.gz archive and extracts it to a target directory on the server. The extraction function (ExtractTarGz in api/archive/targz.go) constructed output paths using filepath.Clean(filepath.Join(outputDirPath, header.Name)). This combination does not prevent directory traversal — a tar entry named ../../etc/cron.d/evil resolves to a path outside the extraction root, so a crafted archive can write files to arbitrary locations on the server filesystem. This vulnerability is fixed in 2.33.8.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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
Severity55% × 45%
Exploitation1% × 40%
Automatability0% × 15%
EPSS PROB
0.8%
EPSS %ILE
55th
KEV
Not listed

Published

May 28, 2026

Last Modified

July 21, 2026

Advisory Details (1)

Auto-updated May 29, 2026
Patch available. Sources: github.
githubMentions a patch (unverified)

Path traversal in backup archive extraction allows arbitrary file write · Advisory · portainer/portainer · GitHub

https://github.com/portainer/portainer/security/advisories/GHSA-m8fg-67j7-cx4v

Vendor Advisories for CVE-2026-44885(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)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/portainer/portainer—
  • 2.33.0 up to 2.33.8: fixed in 2.33.8
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 25× 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 162 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-44885?
CVE-2026-44885 is a medium vulnerability published on May 28, 2026. Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, Portainer's backup restore feature accepts a .tar.gz archive and extracts it to a target…
When was CVE-2026-44885 disclosed?
CVE-2026-44885 was first published on May 28, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44885 actively exploited?
CVE-2026-44885 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (55th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-44885?
CVE-2026-44885 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-44885?
A fix for CVE-2026-44885 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-44885 are linked in the Vendor Advisories panel on this page.

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