CVE-2026-62999

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (38th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated

Also known asEUVD-2026-51625 (ENISA EUVD)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Copier is a library and CLI app for rendering project templates. From 9.5.0 through 9.16.0, percent-encoded parent-directory segments or encoded path separators in a template URL can match a configured trusted repository prefix before an HTTP server or Git transport decodes the path, allowing unsafe template features from a repository outside the trusted prefix to run after user interaction. This issue is fixed in version 9.17.0.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
50
EG Risk 50/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
38th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-30). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 31, 2026

Last Modified

October 23, 2026

Advisory Details (3)

Auto-updated Jul 31, 2026
Patch available. Sources: github, github_commit, github_release.
GitHub release Patch Available

v9.17.0 (2026-07-13)

Patch available: copier-org/copier v9.17.0

https://github.com/copier-org/copier/releases/tag/v9.17.0
GitHub commit Patch Available

commit 7408f0d6287a (copier-org/copier)

Patch available: copier-org/copier v9.17.0 (contains commit 7408f0d6287a)

https://github.com/copier-org/copier/commit/7408f0d6287a7bf452715fd9f25dc54eaba3c295
GitHub advisoryMentions a patch (unverified)

Percent-encoded path traversal segments in template URLs can allow trusted-prefix escape · Advisory · copier-org/copier · GitHub

https://github.com/copier-org/copier/security/advisories/GHSA-34mv-rjq9-5mch

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 44× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 148 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 48 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  3. 2026-10-31 12:18 UTCEG score recompute
  4. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  5. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  6. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  7. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  8. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  9. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  10. 2026-10-25 14:13 UTCEG score recompute
  11. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  12. 2026-10-23 23:29 UTCEG score recompute
  13. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  14. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  15. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  16. 2026-10-21 01:12 UTCEG score recompute
  17. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  18. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-10-18 03:23 UTCEG score recompute
  21. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  22. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  24. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
Show 75 more
  1. 2026-10-13 12:04 UTCEG score recompute
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-10-12 15:49 UTCEG score recompute
  4. 2026-10-11 19:33 UTCEG score recompute
  5. 2026-10-11 16:48 UTCEG score recompute
  6. 2026-10-11 14:10 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  12. 2026-10-06 23:50 UTCEG score recompute
  13. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-10-05 19:54 UTCEG score recompute
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  16. 2026-10-04 23:50 UTCEG score recompute
  17. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  18. 2026-10-04 06:29 UTCEG score recompute
  19. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-10-02 16:48 UTCEG score recompute
  22. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-10-01 02:46 UTCEG score recompute
  24. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  25. 2026-09-29 06:49 UTCEG score recompute
  26. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  27. 2026-09-27 18:38 UTCEG score recompute
  28. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  29. 2026-09-25 04:51 UTCEG score recompute
  30. 2026-09-23 21:26 UTCEG score recompute
  31. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  32. 2026-09-22 21:34 UTCEG score recompute
  33. 2026-09-22 07:36 UTCEG score recompute
  34. 2026-09-20 21:13 UTCEG score recompute
  35. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  36. 2026-09-20 03:40 UTCEG score recompute
  37. 2026-09-19 01:18 UTCEG score recompute
  38. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  39. 2026-09-18 01:16 UTCEG score recompute
  40. 2026-09-17 01:23 UTCEG score recompute
  41. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  42. 2026-09-16 05:27 UTCEG score recompute
  43. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  44. 2026-09-14 01:24 UTCEG score recompute
  45. 2026-09-13 02:04 UTCEG score recompute
  46. 2026-09-11 14:56 UTCEG score recompute
  47. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  48. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  49. 2026-09-10 10:20 UTCEG score recompute
  50. 2026-09-09 07:02 UTCEG score recompute
  51. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  52. 2026-09-07 19:29 UTCEG score recompute
  53. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  54. 2026-09-06 18:16 UTCEG score recompute
  55. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  56. 2026-09-05 18:46 UTCEG score recompute
  57. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  58. 2026-09-05 04:39 UTCEG score recompute
  59. 2026-09-04 10:26 UTCEG score recompute
  60. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  61. 2026-09-03 09:07 UTCEG score recompute
  62. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  63. 2026-09-01 22:31 UTCEG score recompute
  64. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  65. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  66. 2026-08-30 21:50 UTCEG score recompute
  67. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  68. 2026-08-30 10:10 UTCEG score recompute
  69. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  70. 2026-08-29 22:18 UTCEG score recompute
  71. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  72. 2026-08-27 20:46 UTCEG score recompute
  73. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  74. 2026-08-26 19:15 UTCEG score recompute
  75. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 21st percentile

Frequently asked(5)

What is CVE-2026-62999?
CVE-2026-62999 is a high-severity vulnerability; its CVE record was published on July 31, 2026. Copier is a library and CLI app for rendering project templates. From 9.5.0 through 9.16.0, percent-encoded parent-directory segments or encoded path separators in a template URL can match a configured trusted repository prefix before an HTTP server or Git transport decodes the path, allowing…
When was the CVE record for CVE-2026-62999 published?
The CVE record for CVE-2026-62999 was published on July 31, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 23, 2026; the record at its source may have been updated since.
Is CVE-2026-62999 actively exploited?
CVE-2026-62999 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-62999?
CVE-2026-62999 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-62999?
A fix for CVE-2026-62999 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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