CVE-2026-88884

MEDIUMPre-NVD 5.85.8
EchelonGraph scoreMEDIUM confidence

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

Score 5.8 from GitHub Security Advisory published 2026-09-10. A secondary CVSS source baseline 5.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week
5.8EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.8Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

Renovate is a dependency update automation tool. In versions before 44.3.1 (and Mend Renovate CE/EE images before 15.4.0, mend-renovate-ce Helm chart before 15.4.0, mend-renovate-enterprise-edition Helm chart before 10.4.0), digest updates are not subject to the internal minimumReleaseAge (stability age) checks. When a repository configures minimumReleaseAge and has dependencies with updateType=digest — for example GitHub Actions pinned to a commit SHA with a floating tag, Docker images, Go modules or NuGet packages — Renovate will still open a pull request for a newly published digest, marked only with a pending renovate/stability-days status check. A newly published, potentially malicious dependency version can therefore cause a PR to be raised and CI workflows to potentially run before the configured minimum release age has elapsed, which is precisely what the Minimum Release Age control is intended to prevent. The issue is fixed in Renovate 44.3.1; as a workaround, digest updates can be disabled or gated behind dependencyDashboardApproval.

CVSS v3
5.8
EG Score
5.8MEDIUMmedium 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 (value × EchelonGraph’s weight)
Severity58% × 45%
The EG Score, 5.8 of 10.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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: The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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

September 10, 2026

Last Modified

September 29, 2026

Advisory Details (2)

Auto-updated Sep 10, 2026
Fix named in the CVE record. Sources: github.
Web page

Renovate before 44.3.1 Authentication Bypass via Digest Updates | Advisories | VulnCheck

https://www.vulncheck.com/advisories/renovate-before-44.3.1-authentication-bypass-via-digest-updates
GitHub advisoryMentions a patch (unverified)

Digest updates can bypass strict `minimumReleaseAge` internal checks · Advisory · renovatebot/renovate · GitHub

https://github.com/renovatebot/renovate/security/advisories/GHSA-g4qr-hw2h-687r

Vendor Advisories for CVE-2026-88884(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 85× 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.

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. 1 repeat row among the latest 95 is merged into the row it repeats.

  1. 2026-10-11 19:15 UTCEG score recompute
  2. 2026-10-11 16:32 UTCEG score recompute
  3. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  4. 2026-10-11 13:48 UTCEG score recompute
  5. 2026-10-11 07:10 UTCEG score recompute
  6. 2026-10-11 07:10 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  7. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  8. 2026-10-10 01:35 UTCEG score recompute
  9. 2026-10-10 01:35 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  11. 2026-10-09 01:34 UTCEG score recompute
  12. 2026-10-09 01:33 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  13. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  14. 2026-10-08 01:35 UTCEG score recompute
  15. 2026-10-08 01:35 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  17. 2026-10-07 01:35 UTCEG score recompute
  18. 2026-10-07 01:35 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  19. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  20. 2026-10-06 01:36 UTCEG score recompute
  21. 2026-10-06 01:36 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  22. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  23. 2026-10-05 01:11 UTCEG score recompute
  24. 2026-10-05 01:11 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  25. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 21st percentile
Show 69 more
  1. 2026-10-04 01:08 UTCEG score recompute
  2. 2026-10-04 01:08 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  3. 2026-10-03 01:09 UTCEG score recompute
  4. 2026-10-03 01:09 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  5. 2026-10-02 01:10 UTCEG score recompute
  6. 2026-10-02 01:10 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  7. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  8. 2026-10-01 00:48 UTCEG score recompute
  9. 2026-10-01 00:48 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  10. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  11. 2026-09-29 23:29 UTCEG score recompute
  12. 2026-09-29 23:29 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  13. 2026-09-29 22:27 UTCEG score recompute
  14. 2026-09-29 22:27 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  15. 2026-09-29 17:07 UTCEG score recompute
  16. 2026-09-29 17:07 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  17. 2026-09-28 16:21 UTCEG score recompute
  18. 2026-09-28 16:21 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  19. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  20. 2026-09-27 16:21 UTCEG score recompute
  21. 2026-09-27 16:21 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  22. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  23. 2026-09-26 16:23 UTCEG score recompute
  24. 2026-09-26 16:23 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  25. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  26. 2026-09-25 16:10 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  27. 2026-09-24 16:10 UTCEG score recompute
  28. 2026-09-24 16:10 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  29. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  30. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  31. 2026-09-23 16:11 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  32. 2026-09-22 16:12 UTCEG score recompute
  33. 2026-09-22 16:12 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  34. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  35. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  36. 2026-09-21 16:13 UTCEG score recompute
  37. 2026-09-21 16:13 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  38. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  39. 2026-09-20 16:14 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  40. 2026-09-19 16:15 UTCEG score recompute
  41. 2026-09-19 16:15 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  42. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  43. 2026-09-18 16:16 UTCEG score recompute
  44. 2026-09-18 16:16 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  45. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  46. 2026-09-17 16:16 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  47. 2026-09-16 16:17 UTCEG score recompute
  48. 2026-09-16 16:17 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  49. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  50. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  51. 2026-09-15 16:16 UTCEG score recompute
  52. 2026-09-15 16:16 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  53. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  54. 2026-09-14 16:17 UTCEG score recompute
  55. 2026-09-14 16:17 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  56. 2026-09-13 16:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  57. 2026-09-13 16:18 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  58. 2026-09-12 16:19 UTCEG score recompute
  59. 2026-09-12 16:19 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  60. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  61. 2026-09-11 16:20 UTCEG score recompute
  62. 2026-09-11 16:20 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  63. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  64. 2026-09-10 16:21 UTCEG score recompute
  65. 2026-09-10 16:21 UTCGHSA enrichmentGHSA-x9q2-x5p7-v69h · GitHub CVSS 5.8
  66. 2026-09-10 15:21 UTCEG score recompute
  67. 2026-09-10 14:19 UTCEG score recompute
  68. 2026-09-10 13:20 UTCEG score recomputeFirst assessed: 5.8 MEDIUM
  69. 2026-09-10 13:20 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-88884?
CVE-2026-88884 is a medium-severity vulnerability; its CVE record was published on September 10, 2026. Renovate is a dependency update automation tool. In versions before 44.3.1 (and Mend Renovate CE/EE images before 15.4.0, mend-renovate-ce Helm chart before 15.4.0, mend-renovate-enterprise-edition Helm chart before 10.4.0), digest updates are not subject to the internal minimumReleaseAge…
When was CVE-2026-88884 made public?
CVE-2026-88884 was made public on August 27, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 10, 2026. EchelonGraph's copy of the record carries a last-modified date of September 29, 2026; the record at its source may have been updated since.
Is CVE-2026-88884 actively exploited?
CVE-2026-88884 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-88884?
CVE-2026-88884 has a CVSS base score of 5.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-88884?
The CVE record for CVE-2026-88884 names the fix: "The issue is fixed in Renovate 44.3.1; as a workaround, digest updates can be disabled or gated behind `dependencyDashboardApproval`." The vendor advisories EchelonGraph has for CVE-2026-88884 are linked in the Vendor Advisories panel on this page.

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