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: 0.5%CVSS: 5.9Exploit: None knownExposed services: Not assessed

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
5.9MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100CISA SSVC

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%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
44th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 13, 2026

Last Modified

September 3, 2026

Advisory Details (4)

Auto-updated Aug 14, 2026
Patch available.
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(27)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatsatellite/iop-vmaas-rhel9:17908181572026-10-01redhat
redhatose-gcp-gcr-image-credential-provider-0:4.17.0-202609081428.p2.g8ce997d.assembly.stream.el82026-10-01redhat
redhatopenshift4/ose-vsphere-problem-detector-rhel9:17899037652026-10-01redhat
redhatquay/quay-rhel9:17906902982026-10-01redhat
redhatyggdrasil-worker-forwarder-0:0.1.0-2.1.el9sat2026-10-01redhat
redhatopenshift-clients-0:4.12.0-202609111749.p2.gd691257.assembly.stream.el82026-10-01redhat
redhatopenshift4/ose-vsphere-problem-detector-rhel9:17899376292026-10-01redhat
redhatopenshift4/ovirt-csi-driver-rhel8-operator:17899122742026-10-01redhat
redhatose-gcp-gcr-image-credential-provider-0:4.18.0-202609081426.p2.g6ea2356.assembly.stream.el82026-10-01redhat
redhatrhoai/odh-kube-auth-proxy-rhel9:17901314762026-09-30redhat
redhatcompliance/openshift-file-integrity-rhel8-operator:17902892632026-09-30redhat
redhatcontainer-native-virtualization/kubemacpool-rhel9:17900603162026-09-29redhat
redhatcontainer-native-virtualization/kubemacpool-rhel9:17902517712026-09-29redhat
redhatmulticluster-globalhub/multicluster-globalhub-agent-rhel9:17906386122026-09-29redhat
redhatose-azure-acr-image-credential-provider-0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el102026-09-29redhat
redhatrh-lightspeed-runtimes/runtimes-inventory-rhel9-operator:17901941222026-09-29redhat
redhatopenshift-clients-0:4.22.0-202609170632.p2.gd0f23b1.assembly.stream.el82026-09-29redhat
redhatmulticluster-globalhub/multicluster-globalhub-agent-rhel9:17900854942026-09-29redhat
redhatmicroshift-0:4.22.16-202609250657.p0.g3898bb2.assembly.4.22.16.el92026-09-29redhat
redhatcontainer-native-virtualization/kubemacpool-rhel9:17902445932026-09-29redhat
redhatrhacm2/thanos-rhel9:17901781062026-09-28redhat
redhatmulticluster-engine/discovery-rhel9:17901309732026-09-28redhat
redhatrhacm2/thanos-rhel9:17901984082026-09-28redhat
redhatgit-lfs-0:3.4.1-4.el9_4.62026-09-28redhat
redhatmulticluster-engine/discovery-rhel9:17901262442026-09-28redhat
redhatmulticluster-engine/discovery-rhel9:17901345102026-09-28redhat
redhatmulticluster-engine/discovery-rhel9:17901176532026-09-28redhat

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 rangeFix by version rangeDependents
golang-1.251.25.0-1 ... 1.25.9-1 (20 versions)
  • every version on: no fix on record
—
golang-1.261.26.0-1 ... 1.26~rc3-2 (16 versions)
  • every version up to 1.26.6-1: fixed in 1.26.6-1
—
golang-1.271.27~rc1-1, 1.27~rc2-1
  • every version up to 1.27~rc3-1: fixed in 1.27~rc3-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
golang-1.191.19.10-1 ... 1.19.9-1 (12 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
golang-1.241.24.12-1 ... 1.24.9-1 (10 versions)
  • every version on: no fix on record
—
Go(1)
PackageVulnerable rangeFix by version rangeDependents
stdlib—
  • every version up to 1.25.13: fixed in 1.25.13
  • 1.26.0-0 up to 1.26.6: fixed in 1.26.6
  • 1.27.0-0 up to 1.27.0-rc.3: fixed in 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 21× in last 7d / 93× 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 173 total refreshes for this CVE.

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

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

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 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 0.5% probability of exploitation in the next 30 days (44th percentile of EPSS-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?
A fix for CVE-2026-56860 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-56860 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-56860

Explore →

Is Your Infrastructure Affected by CVE-2026-56860?

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

Book a Demo →Browse All CVEs