CVE-2026-93302

HIGHNVD 8.28.2
EchelonGraph scoreMEDIUM confidence

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

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-27. NVD baseline CVSS 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-87910 (ENISA EUVD) · GHSA-22fm-4q7r-f7w4 (GitHub Security Advisories)Source: ENISA EUVD

8.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

MatchTrustedPeer ignores the public key used, leading to forged CA clones passing verification. Affected builds are any that enable the macro WOLFSSL_TRUST_PEER_CERT and load CA certificates with wolfSSL_CTX_trust_peer_cert() or wolfSSL_trust_peer_cert(). The peer must know the certificates being loaded to either of those APIs to take advantage of the issue. When OPENSSL_COMPATIBLE_DEFAULTS is also defined this widens the affected API to include all CA certificate loading. Both macros are defined when using autoconf builds such as (nginx, haproxy, stunnel, wpas, apache httpd, hitch, bind, rsyslog, ffmpeg, all, distro). When the certificate is listed as a trusted peer certificate the issue previously allowed for a malicious (D)TLS server to bypass authentication once knowing which CA’s the client would accept. This also affects mutual authentication cases where the client knows which CA’s the server has loaded. If building with any of these configurations and using (D)TLS where the loaded CA’s could be known and authentication of the peer is desired, users should either: update to the latest wolfSSL version, apply the fix patch, or use the configure flag --disable-openssl-compatible-defaults and not load CA’s with wolfSSL_CTX_trust_peer_cert() or wolfSSL_trust_peer_cert() to mitigate the issue.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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)
Severity82% × 45%
Impact severity (EG Severity): CVSS 8.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 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
0.2%
EPSS %ILE
14th
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 (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.

EG Severity
8.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-09). 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, and whom BOD 26-04 binds: 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.

The score's inputs: 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

September 27, 2026

Last Modified

October 2, 2026

Advisory Details (1)

Auto-updated Sep 27, 2026
Patch available. Sources: github_commit.
GitHub commit

commit 22bcd51d553e (wolfSSL/wolfssl)

Fix landed in wolfSSL/wolfssl commit 22bcd51d553e — awaiting tagged release

https://github.com/wolfSSL/wolfssl/commit/22bcd51d553eaac1de37bee91fdac80cc47961e1

Vendor Advisories for CVE-2026-93302(1)

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

Affected Packages

(3 across 3 ecosystems)
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
wolfssl—
  • 5.3.0 up to 5.9.4-r0: fixed in 5.9.4-r0
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
wolfssl5.5.4-2 ... 5.9.2-1 (27 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
wolfssl5.7.2-0.1 ... 5.9.2-1 (14 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 32× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 117 rows 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 17 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:35 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  2. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  3. 2026-11-10 16:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  4. 2026-11-09 21:30 UTCEchelonGraph re-scored
  5. 2026-11-09 21:30 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  6. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  7. 2026-11-06 16:40 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  8. 2026-11-05 16:39 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  9. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-11-03 05:07 UTCEchelonGraph re-scored
  12. 2026-11-03 05:06 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  13. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  14. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  15. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  16. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  17. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  18. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  19. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  20. 2026-10-27 12:31 UTCEchelonGraph re-scored
  21. 2026-10-27 12:31 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  22. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  23. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  24. 2026-10-25 13:49 UTCEchelonGraph re-scored
  25. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
Show 75 more
  1. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  3. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  4. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  5. 2026-10-20 06:58 UTCEchelonGraph re-scored
  6. 2026-10-20 06:57 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  7. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-10-18 02:59 UTCEchelonGraph re-scored
  10. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  13. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  14. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  15. 2026-10-13 04:27 UTCEchelonGraph re-scored
  16. 2026-10-13 04:27 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  17. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  18. 2026-10-12 14:43 UTCEchelonGraph re-scored
  19. 2026-10-12 02:40 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  20. 2026-10-11 19:12 UTCEchelonGraph re-scored
  21. 2026-10-11 16:28 UTCEchelonGraph re-scored
  22. 2026-10-11 15:30 UTCEchelonGraph re-scored
  23. 2026-10-11 15:30 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  24. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  25. 2026-10-11 13:42 UTCEchelonGraph re-scored
  26. 2026-10-11 04:20 UTCEchelonGraph re-scored
  27. 2026-10-11 04:20 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  28. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  29. 2026-10-10 17:10 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  30. 2026-10-10 06:00 UTCEchelonGraph re-scored
  31. 2026-10-10 05:59 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  32. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  33. 2026-10-09 18:50 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  34. 2026-10-09 07:40 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  35. 2026-10-08 20:30 UTCEchelonGraph re-scored
  36. 2026-10-08 20:30 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  37. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  38. 2026-10-08 09:20 UTCEchelonGraph re-scored
  39. 2026-10-08 09:20 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  40. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  41. 2026-10-07 22:10 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  42. 2026-10-07 10:58 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  43. 2026-10-06 23:49 UTCEchelonGraph re-scored
  44. 2026-10-06 23:49 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  45. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  46. 2026-10-06 12:40 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  47. 2026-10-06 01:31 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  48. 2026-10-06 01:30 UTCEchelonGraph re-scored
  49. 2026-10-06 01:30 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  50. 2026-10-06 01:30 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  51. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  52. 2026-10-05 14:04 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  53. 2026-10-05 02:52 UTCEchelonGraph re-scored
  54. 2026-10-05 02:52 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  55. 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  56. 2026-10-04 15:38 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  57. 2026-10-04 04:28 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  58. 2026-10-03 17:20 UTCEchelonGraph re-scored
  59. 2026-10-03 17:19 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  60. 2026-10-03 06:10 UTCEchelonGraph re-scored
  61. 2026-10-03 06:10 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH · GitHub CVSS 8.2
  62. 2026-10-02 19:00 UTCEchelonGraph re-scored▼ 0.10
  63. 2026-10-02 19:00 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH
  64. 2026-10-02 18:59 UTCNVD updateCVSS v3 → 8.2
  65. 2026-10-02 12:57 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH
  66. 2026-10-02 01:49 UTCEchelonGraph re-scored
  67. 2026-10-02 01:48 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH
  68. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  69. 2026-10-01 14:35 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH
  70. 2026-10-01 03:26 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH
  71. 2026-09-30 16:17 UTCEchelonGraph re-scored
  72. 2026-09-30 16:17 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH
  73. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  74. 2026-09-30 04:45 UTCGHSA enrichmentGHSA-22fm-4q7r-f7w4 · GitHub severity HIGH
  75. 2026-09-29 17:36 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-93302?
CVE-2026-93302 is a high-severity vulnerability; its CVE record was published on September 27, 2026. MatchTrustedPeer ignores the public key used, leading to forged CA clones passing verification. Affected builds are any that enable the macro WOLFSSL_TRUST_PEER_CERT and load CA certificates with wolfSSL_CTX_trust_peer_cert() or wolfSSL_trust_peer_cert(). The peer must know the certificates being…
When was CVE-2026-93302 made public?
CVE-2026-93302 was made public on September 26, 2026: that is the date its CVE record's CNA, wolfSSL Inc., gives for when the vulnerability was made public. The CVE record itself was published on September 27, 2026. EchelonGraph's copy of the record carries a last-modified date of October 2, 2026; the record at its source may have been updated since.
Is CVE-2026-93302 actively exploited?
CVE-2026-93302 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-93302?
CVE-2026-93302 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-93302?
A fix for CVE-2026-93302 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-93302 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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