CVE-2023-5044

HIGHNVD 8.88.9
EchelonGraph scoreHIGH confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score elevated to 8.9 because EPSS predicted 57% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs) when EchelonGraph scored this CVE. NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction (continuous uplift above 30%)
Sources: EPSS, NVD CVSS v3
Elevated
8.9EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High exploitation likelihood — EPSS 57%
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 57%CVSS: 8.8Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

Code injection via nginx.ingress.kubernetes.io/permanent-redirect annotation.

CVSS v3
8.8
EG Score
8.9HIGHhigh confidence
EG Risk
62
EG Risk 62/100

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)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation57% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
57%
EPSS %ILE
99th
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 (8.9): severity, escalated by confirmed exploitation. This CVE's 8.9 is EPSS's lift toward 9.0 from its impact severity (EG Severity, CVSS 8.8 HIGH): a likelihood of exploitation, not impact.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
57% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-20). 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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). 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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (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

October 25, 2023

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 30, 2026
Patch available.
Web page

CVE-2023-5044: Code injection via nginx.ingress.kubernetes.io/permanent-redirect annotation · Issue #126817 · kubernetes/kubernetes · GitHub

https://github.com/kubernetes/ingress-nginx/issues/10572
Web page

oss-security - [kubernetes] CVE-2023-5044: Code injection via nginx.ingress.kubernetes.io/permanent-redirect annotation

http://www.openwall.com/lists/oss-security/2023/10/25/3

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
k8s.io/ingress-nginx—
  • every version up to 1.9.0: fixed in 1.9.0
  • every version on: 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 / 26× 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 88 of 147 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. 12 repeat rows among the latest 100 are merged into the row they repeat. The 59 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-22 16:31 UTCEPSS rescoreEPSS 57% · 99th percentile
  2. 2026-10-21 16:29 UTCEPSS rescoreEPSS 57% · 99th percentile
  3. 2026-10-20 21:44 UTCEG score recompute
  4. 2026-10-19 16:29 UTCEPSS rescoreEPSS 57% · 99th percentile
  5. 2026-10-18 16:29 UTCEPSS rescoreEPSS 57% · 99th percentile
  6. 2026-10-18 07:44 UTCEG score recompute
  7. 2026-10-16 16:36 UTCEPSS rescoreEPSS 57% · 99th percentile
  8. 2026-10-15 16:29 UTCEPSS rescoreEPSS 57% · 99th percentile
  9. 2026-10-14 16:30 UTCEPSS rescoreEPSS 57% · 99th percentile
  10. 2026-10-13 16:30 UTCEPSS rescoreEPSS 57% · 99th percentile
  11. 2026-10-12 19:54 UTCOSV refresh
  12. 2026-10-12 18:14 UTCEG score recompute
  13. 2026-10-12 16:31 UTCEPSS rescoreEPSS 57% · 99th percentile
  14. 2026-10-11 21:40 UTCEG score recompute
  15. 2026-10-11 13:45 UTCEPSS rescoreEPSS 57% · 99th percentile
  16. 2026-10-10 19:58 UTCEPSS rescoreEPSS 57% · 99th percentile
  17. 2026-10-09 20:05 UTCEPSS rescoreEPSS 57% · 99th percentile
  18. 2026-10-08 17:06 UTCEPSS rescoreEPSS 57% · 99th percentile
  19. 2026-10-07 23:46 UTCEPSS rescoreEPSS 57% · 99th percentile
  20. 2026-10-06 15:15 UTCEPSS rescoreEPSS 57% · 99th percentile
  21. 2026-10-03 14:23 UTCEPSS rescoreEPSS 57% · 99th percentile
  22. 2026-10-01 19:48 UTCEPSS rescoreEPSS 57% · 99th percentile
  23. 2026-09-30 16:35 UTCEG score recompute
  24. 2026-09-30 15:01 UTCEPSS rescoreEPSS 57% · 99th percentile
  25. 2026-09-29 15:17 UTCEPSS rescoreEPSS 57% · 99th percentile
Show 63 more
  1. 2026-09-24 14:01 UTCEPSS rescoreEPSS 57% · 99th percentile
  2. 2026-09-23 13:46 UTCEPSS rescoreEPSS 57% · 99th percentile
  3. 2026-09-22 18:38 UTCOSV refresh
  4. 2026-09-18 19:26 UTCEPSS rescoreEPSS 57% · 99th percentile
  5. 2026-09-16 14:06 UTCEPSS rescoreEPSS 57% · 99th percentile
  6. 2026-09-16 05:11 UTCEPSS rescoreEPSS 57% · 99th percentile
  7. 2026-09-15 03:08 UTCEPSS rescoreEPSS 57% · 99th percentile
  8. 2026-09-12 14:58 UTCEPSS rescoreEPSS 57% · 99th percentile
  9. 2026-09-11 14:51 UTCEPSS rescoreEPSS 57% · 98th percentile
  10. 2026-09-08 21:58 UTCEPSS rescoreEPSS 57% · 98th percentile
  11. 2026-09-06 13:46 UTCEPSS rescoreEPSS 57% · 98th percentile
  12. 2026-09-05 15:26 UTCEPSS rescoreEPSS 57% · 99th percentile
  13. 2026-09-04 13:58 UTCEPSS rescoreEPSS 57% · 98th percentile
  14. 2026-09-03 14:46 UTCOSV refresh
  15. 2026-09-02 14:10 UTCEPSS rescoreEPSS 57% · 98th percentile
  16. 2026-09-01 13:52 UTCEPSS rescoreEPSS 57% · 98th percentile
  17. 2026-08-30 19:15 UTCEPSS rescoreEPSS 57% · 98th percentile
  18. 2026-08-30 01:20 UTCEPSS rescoreEPSS 57% · 99th percentile
  19. 2026-08-28 21:39 UTCEPSS rescoreEPSS 57% · 99th percentile
  20. 2026-08-27 14:23 UTCEPSS rescoreEPSS 57% · 98th percentile
  21. 2026-08-26 14:44 UTCEPSS rescoreEPSS 57% · 98th percentile
  22. 2026-08-25 13:47 UTCEPSS rescoreEPSS 57% · 98th percentile
  23. 2026-08-23 00:17 UTCEPSS rescoreEPSS 57% · 98th percentile
  24. 2026-08-21 23:47 UTCEPSS rescoreEPSS 57% · 98th percentile
  25. 2026-08-20 22:53 UTCEPSS rescoreEPSS 57% · 98th percentile
  26. 2026-08-19 17:02 UTCEPSS rescoreEPSS 57% · 98th percentile
  27. 2026-08-18 13:46 UTCEPSS rescoreEPSS 57% · 98th percentile
  28. 2026-08-17 04:18 UTCOSV refresh
  29. 2026-08-16 14:54 UTCEPSS rescoreEPSS 57% · 98th percentile
  30. 2026-08-16 02:12 UTCEPSS rescoreEPSS 57% · 98th percentile
  31. 2026-08-15 01:28 UTCEPSS rescoreEPSS 57% · 98th percentile
  32. 2026-08-13 21:58 UTCEPSS rescoreEPSS 57% · 98th percentile
  33. 2026-08-12 13:49 UTCEPSS rescoreEPSS 57% · 98th percentile
  34. 2026-08-11 13:40 UTCEPSS rescoreEPSS 57% · 98th percentile
  35. 2026-08-09 13:44 UTCEPSS rescoreEPSS 57% · 98th percentile
  36. 2026-08-07 16:25 UTCEPSS rescoreEPSS 57% · 98th percentile
  37. 2026-08-06 13:45 UTCEPSS rescoreEPSS 57% · 98th percentile
  38. 2026-08-01 22:36 UTCOSV refresh
  39. 2026-08-01 04:14 UTCEPSS rescoreEPSS 57% · 98th percentile
  40. 2026-07-30 16:26 UTCEPSS rescoreEPSS 57% · 98th percentile
  41. 2026-07-30 01:29 UTCEPSS rescoreEPSS 57% · 98th percentile
  42. 2026-07-28 15:34 UTCEPSS rescoreEPSS 57% · 98th percentile
  43. 2026-07-26 14:53 UTCEPSS rescoreEPSS 57% · 98th percentile
  44. 2026-07-25 14:16 UTCEPSS rescoreEPSS 57% · 98th percentile
  45. 2026-07-24 14:16 UTCEPSS rescoreEPSS 57% · 98th percentile
  46. 2026-07-23 14:16 UTCEPSS rescoreEPSS 57% · 98th percentile
  47. 2026-07-23 02:28 UTCEG score recompute▲ 0.10
  48. 2026-07-22 23:15 UTCEG score recompute▲ 1.20
  49. 2026-07-22 14:07 UTCEPSS rescoreEPSS 57% · 98th percentile
  50. 2026-07-21 15:23 UTCEPSS rescoreEPSS 57% · 98th percentile
  51. 2026-07-20 17:06 UTCEPSS rescoreEPSS 57% · 98th percentile
  52. 2026-07-19 14:29 UTCEPSS rescoreEPSS 57% · 98th percentile
  53. 2026-07-19 02:27 UTCEPSS rescoreEPSS 57% · 98th percentile
  54. 2026-07-16 17:01 UTCEPSS rescoreEPSS 57% · 98th percentile
  55. 2026-07-15 16:56 UTCEPSS rescoreEPSS 57% · 98th percentile
  56. 2026-07-15 05:49 UTCOSV refresh
  57. 2026-07-13 22:28 UTCEPSS rescoreEPSS 57% · 98th percentile
  58. 2026-07-13 06:11 UTCEPSS rescoreEPSS 57% · 98th percentile
  59. 2026-07-12 05:45 UTCEPSS rescoreEPSS 57% · 98th percentile
  60. 2026-07-11 08:26 UTCEPSS rescoreEPSS 57% · 98th percentile
  61. 2026-07-09 19:08 UTCEPSS rescoreEPSS 57% · 98th percentile
  62. 2026-07-08 15:13 UTCEPSS rescoreEPSS 57% · 98th percentile
  63. 2026-07-07 13:44 UTCEPSS rescoreEPSS 57% · 98th percentile

Publicly available exploits

(2 references)

Public exploit code is referenced for this CVE (2 GitHub PoCs). Defenders should treat patch urgency accordingly.

  • GitHub PoC4ARMED/cve-2023-5044
    Published Jan 17, 2024
    Open source ↗
  • GitHub PoCr0binak/CVE-2023-5044
    Published Oct 30, 2023

    PoC CVE-2023-5044

    Open source ↗

Frequently asked(5)

What is CVE-2023-5044?
CVE-2023-5044 is a high-severity vulnerability; its CVE record was published on October 25, 2023. Code injection via nginx.ingress.kubernetes.io/permanent-redirect annotation.
When was CVE-2023-5044 made public?
CVE-2023-5044 was made public on October 25, 2023: that is the date its CVE record's CNA, Kubernetes, gives for when the vulnerability was made public. The CVE record itself was published on October 25, 2023. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2023-5044 actively exploited?
CVE-2023-5044 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-5044?
CVE-2023-5044 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.9 (HIGH).
How do I remediate CVE-2023-5044?
A fix for CVE-2023-5044 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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