CVE-2026-63133

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (44th 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
Elevated
6.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.5Exploit: No code on recordExposed services: Not assessed

The CVE record names the fixed release — apply it.

Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, safe-extract.py extracts uploaded archives with no limit on entry count, directory depth, total entries, or output size. A small malicious archive containing a large number of directory or file entries causes the filebeat processing container to create an unbounded number of filesystem objects, exhausting inodes or filesystem metadata and denying service to the processing pipeline and any service sharing the same mount. Version 26.07.0 fixes the issue.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
45
EG Risk 45/100

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)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
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 public PoC (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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
44th
KEV
Not listed

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

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation public PoC (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.

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 11, 2026

Last Modified

October 2, 2026

Advisory Details (1)

Auto-updated Aug 11, 2026
Fix named in the CVE record. Sources: github.
GitHub advisoryMentions a patch (unverified)

Uncontrolled Resource Consumption in Archive Extraction (Inode-Exhaustion DoS) · Advisory · cisagov/Malcolm · GitHub

https://github.com/cisagov/Malcolm/security/advisories/GHSA-c35g-mgc3-95rx

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 45× 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 103 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 3 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  3. 2026-10-12 15:49 UTCEG score recompute
  4. 2026-10-11 19:33 UTCEG score recompute
  5. 2026-10-11 16:48 UTCEG score recompute
  6. 2026-10-11 14:10 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  12. 2026-10-06 17:35 UTCEG score recompute
  13. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  16. 2026-10-03 21:47 UTCEG score recompute
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-10-02 21:26 UTCEG score recompute
  19. 2026-10-02 20:30 UTCEG score recompute
  20. 2026-10-02 20:25 UTCMITRE cvelistV5CVSS v4 → 7.1
  21. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  22. 2026-10-02 16:45 UTCEG score recompute
  23. 2026-10-02 08:25 UTCEG score recompute
  24. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  25. 2026-09-30 22:00 UTCEG score recompute
Show 75 more
  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  2. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-09-28 10:18 UTCEG score recompute
  4. 2026-09-27 10:00 UTCEG score recompute
  5. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  6. 2026-09-25 04:50 UTCEG score recompute
  7. 2026-09-24 04:32 UTCEG score recompute
  8. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  9. 2026-09-23 04:12 UTCEG score recompute
  10. 2026-09-22 03:53 UTCEG score recompute
  11. 2026-09-21 03:34 UTCEG score recompute
  12. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  13. 2026-09-20 02:54 UTCEG score recompute
  14. 2026-09-19 02:26 UTCEG score recompute
  15. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  16. 2026-09-18 02:07 UTCEG score recompute
  17. 2026-09-17 01:49 UTCEG score recompute
  18. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  19. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  20. 2026-09-16 01:30 UTCEG score recompute
  21. 2026-09-13 22:05 UTCEG score recompute
  22. 2026-09-12 21:47 UTCEG score recompute
  23. 2026-09-11 21:28 UTCEG score recompute
  24. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  25. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  26. 2026-09-10 21:10 UTCEG score recompute
  27. 2026-09-09 07:29 UTCEG score recompute
  28. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  29. 2026-09-08 07:11 UTCEG score recompute
  30. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  31. 2026-09-07 05:59 UTCEG score recompute
  32. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  33. 2026-09-06 02:20 UTCEG score recompute
  34. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  35. 2026-09-05 02:01 UTCEG score recompute
  36. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  37. 2026-09-02 23:44 UTCEG score recompute
  38. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  39. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  40. 2026-09-01 11:51 UTCEG score recompute
  41. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  42. 2026-08-31 09:54 UTCEG score recompute
  43. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  44. 2026-08-30 09:30 UTCEG score recompute
  45. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  46. 2026-08-29 08:59 UTCEG score recompute
  47. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  48. 2026-08-27 21:17 UTCEG score recompute
  49. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  50. 2026-08-26 20:59 UTCEG score recompute
  51. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  52. 2026-08-25 20:41 UTCEG score recompute
  53. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  54. 2026-08-24 20:12 UTCEG score recompute
  55. 2026-08-23 19:53 UTCEG score recompute
  56. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  57. 2026-08-22 19:35 UTCEG score recompute
  58. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  59. 2026-08-21 19:17 UTCEG score recompute
  60. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  61. 2026-08-19 18:40 UTCEG score recompute
  62. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  63. 2026-08-18 17:22 UTCEG score recompute
  64. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  65. 2026-08-17 15:55 UTCEG score recompute
  66. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  67. 2026-08-16 15:37 UTCEG score recompute
  68. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  69. 2026-08-15 15:19 UTCEG score recompute
  70. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  71. 2026-08-14 15:00 UTCEG score recompute
  72. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  73. 2026-08-12 14:23 UTCEG score recompute
  74. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  75. 2026-08-12 13:25 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-63133?
CVE-2026-63133 is a medium-severity vulnerability; its CVE record was published on August 11, 2026. Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, safe-extract.py extracts uploaded archives with no limit on entry count, directory depth, total entries, or output size. A small malicious archive containing a large number of directory or file entries causes the filebeat…
When was the CVE record for CVE-2026-63133 published?
The CVE record for CVE-2026-63133 was published on August 11, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 2, 2026; the record at its source may have been updated since.
Is CVE-2026-63133 actively exploited?
CVE-2026-63133 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-63133?
CVE-2026-63133 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-63133?
The CVE record for CVE-2026-63133 names the fix: "Version 26.07.0 fixes the issue."

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-63133

Explore →

Is Your Infrastructure Affected by CVE-2026-63133?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs