CVE-2026-56876

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

A fix is available — apply it.

extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory. Depending on how extract-zip is used, an attacker could read or write to arbitrary files.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

June 26, 2026

Last Modified

July 6, 2026

Advisory Details (3)

Auto-updated Jun 26, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic
https://www.cve.org/CVERecord?id=CVE-2026-56876
generic
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-177-01.json
github Patch Available🟡 PoC Available

Path Traversal via Unvalidated Symlink in extract-zip · Advisory · ziad626/extract-zip-security-research · GitHub

https://github.com/ziad626/extract-zip-security-research/security/advisories/GHSA-x7jf-2287-qcpf

Vendor Advisories for CVE-2026-56876(2)

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
redhatrh-podman-desktop-0:1.1.2-1.el10_22026-08-20redhat
npmextract-zip—ghsa

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
node-extract-zip2.0.1+ds-1, 2.0.1+ds-2, 2.0.1+ds-3, 2.0.1+ds-4——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-extract-zip2.0.1+ds-4——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-extract-zip2.0.1+ds-4——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-extract-zip2.0.1+ds-4——

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 30× in last 7d / 115× 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 207 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-56876?
CVE-2026-56876 is a high vulnerability published on June 26, 2026. extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory.…
When was CVE-2026-56876 disclosed?
CVE-2026-56876 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56876 actively exploited?
CVE-2026-56876 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 68.1% of all scored CVEs.
What is the CVSS score of CVE-2026-56876?
CVE-2026-56876 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-56876?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56876, 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

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