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
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.1Exploit: None knownExposed services: Not assessed

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
8.1HIGHmedium confidence
EG Risk
41
EG Risk 41/100

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
Severity81% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.5%
EPSS %ILE
42nd
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
githubMentions a patch (unverified)🟡 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 / EcosystemFix (by version range) / 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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
node-extract-zip2.0.1+ds-1, 2.0.1+ds-2, 2.0.1+ds-3, 2.0.1+ds-4
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
node-extract-zip2.0.1+ds-4
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-extract-zip2.0.1+ds-4
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-extract-zip2.0.1+ds-4
  • every version on: no fix on record
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
extract-zip—
  • every version through 2.0.1: no fix on record
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 39× 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 267 total refreshes for this CVE.

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

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

Same product

1 shown

Debian:12:node-extract-zip

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 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 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56876?
CVE-2026-56876 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56876?
A fix for CVE-2026-56876 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-56876 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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