CVE-2026-15028

LOWPre-NVD 3.93.9—
EchelonGraph scoreMEDIUM confidence

Score 3.9 from GitHub Security Advisory (severity: LOW) published 2026-07-10. a secondary CVSS source baseline 3.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
3.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.9Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could lead to a denial of service, making the system unavailable, or potentially allow for arbitrary code execution, giving the attacker control over the affected system.

CVSS v3
3.9
EG Score
3.9(medium)
EG Risk
18(Track)
EG Risk 18/100SSVC: 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
Severity39% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

July 10, 2026

Last Modified

September 18, 2026

References (5)

Vendor Advisories for CVE-2026-15028(3)

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
ubuntulibarchive13 (3.6.0-1ubuntu1.8) @ jammy2026-09-18ubuntu
redhatlibarchive-main-3.8.8-2.1.hum12026-07-12redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libarchive3.4.3-2 ... 3.8.9-1 (25 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libarchive3.6.2-1, 3.6.2-1+deb12u1, 3.6.2-1+deb12u2, 3.6.2-1+deb12u3, 3.6.2-1+deb12u43.6.2-1+deb12u5—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libarchive3.7.4-4 ... 3.8.9-1 (9 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libarchive3.7.4-4 ... 3.8.8-2 (7 versions)3.8.9-1—

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

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 14× in last 7d / 60× 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 143 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-15028?
CVE-2026-15028 is a low vulnerability published on July 10, 2026. A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could…
When was CVE-2026-15028 disclosed?
CVE-2026-15028 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15028 actively exploited?
CVE-2026-15028 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 89.4% of all scored CVEs.
What is the CVSS score of CVE-2026-15028?
CVE-2026-15028 has a CVSS v3 base score of 3.9 (NVD).
How do I remediate CVE-2026-15028?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15028, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-15028

Explore →

Is Your Infrastructure Affected by CVE-2026-15028?

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

Start Free Scan →Browse All CVEs