CVE-2026-56860

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2026-08-14. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — Patch released this week
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.9Exploit: None knownExposed: 0

A fix is available — apply it.

Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity59% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 3, 2026

Advisory Details (4)

Auto-updated Aug 14, 2026
No patch confirmed yet.
generic

GO-2026-6218 - Go Packages

https://pkg.go.dev/vuln/GO-2026-6218
generic
https://groups.google.com/g/golang-announce/c/94pEornpRlI
generic

net/url: quadratic complexity in resolvePath when processing backtrack path elements · Issue #80494 · golang/go · GitHub

https://go.dev/issue/80494
generic
https://go.dev/cl/803681

Vendor Advisories for CVE-2026-56860(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatosbuild-composer-0:75-10.el8_82026-09-17redhat
redhatopentelemetry-collector-0:0.152.1-2.el9_42026-09-17redhat
redhatopentelemetry-collector-0:0.152.1-2.el9_62026-09-16redhat
redhatcryostat/cryostat-storage-rhel9:4.2.0-222026-09-16redhat
redhatflightctl-0:1.1.4-1.el9em2026-09-16redhat
redhatopentelemetry-collector-0:0.152.1-2.el10_02026-09-16redhat
redhatflightctl-0:1.2.1-1.el92026-09-16redhat
redhatgrafana-0:10.2.6-26.el10_02026-09-15redhat
redhatopenshift-0:4.20.0-202609041738.p2.g4012064.assembly.stream.el82026-09-15redhat
redhatose-crio-credential-provider-0:4.21.0-202609021357.p2.g83d4961.assembly.stream.el102026-09-15redhat
redhatgrafana-0:10.2.6-23.el9_62026-09-15redhat
redhatopenshift-0:4.22.0-202609021800.p2.g19365a0.assembly.stream.el82026-09-15redhat
redhatgit-lfs-0:3.6.1-2.el9_6.72026-09-14redhat
redhatgrafana-pcp-0:5.1.1-5.el9_2.22026-09-14redhat
redhatrhc-worker-playbook-0:0.2.10-2.el10_22026-09-14redhat
redhatdelve-0:1.26.1-1.el9_6.12026-09-14redhat
redhatgrafana-pcp-0:5.1.1-9.el9_42026-09-14redhat
redhatgit-lfs-0:3.2.0-2.el9_2.102026-09-14redhat
redhatdelve-0:1.26.1-1.el9_2.12026-09-14redhat
redhatgit-lfs-0:3.4.1-13.el8_102026-09-14redhat
redhatdelve-0:1.26.1-1.el9_4.12026-09-14redhat
redhatgit-lfs-0:3.6.1-2.el10_0.72026-09-14redhat
redhatgrafana-pcp-0:5.1.1-15.el9_6.12026-09-14redhat
redhatgrafana-pcp-0:5.3.0-1.el10_0.12026-09-11redhat
redhatgit-lfs-0:3.7.1-4.el9_8.32026-09-10redhat
redhatquay/quay-rhel8:17885943762026-09-10redhat
redhatexternal-secrets-operator/external-secrets-rhel9:17889639292026-09-10redhat
redhatopenshift-logging/eventrouter-rhel9:17883757962026-09-10redhat
redhatosbuild-composer-0:134.1-12.el10_02026-09-10redhat
redhatoadp/oadp-velero-rhel9:17888604612026-09-09redhat

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

(6 across 4 ecosystems)
Debian:14(3)
PackageVulnerable rangeFixed inDependents
golang-1.251.25.0-1 ... 1.25.9-1 (20 versions)——
golang-1.261.26.0-1 ... 1.26~rc3-2 (16 versions)1.26.6-1—
golang-1.271.27~rc1-1, 1.27~rc2-11.27~rc3-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
golang-1.191.19.10-1 ... 1.19.9-1 (12 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
golang-1.241.24.12-1 ... 1.24.9-1 (10 versions)——
Go(1)
PackageVulnerable rangeFixed inDependents
stdlib—1.27.0-rc.3—

Weakness Classification(1)

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

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 27× in last 7d / 103× 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 129 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-56860?
CVE-2026-56860 is a medium vulnerability published on August 13, 2026. Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking…
When was CVE-2026-56860 disclosed?
CVE-2026-56860 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56860 actively exploited?
CVE-2026-56860 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.0% of all scored CVEs.
What is the CVSS score of CVE-2026-56860?
CVE-2026-56860 has a CVSS v3.1 base score of 5.9 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-56860?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56860, 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-2026-56860

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