CVE-2026-82208

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-06. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

With the wolfSSL backend, when CA caching is enabled and an CURLOPT_SSL_CTX_FUNCTION callback replaces the trust store, libcurl can silently reinstall the cached store after the callback returns. A certificate trusted by the cached store but rejected by the callback-selected store is then incorrectly accepted.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

September 6, 2026

Last Modified

September 15, 2026

Advisory Details (3)

Auto-updated Sep 8, 2026
No patch confirmed yet.
generic

HackerOne

https://hackerone.com/reports/3973090
generic
https://curl.se/docs/CVE-2026-82208.json
generic

curl - wolfSSL CA-cache hit overrides callback - CVE-2026-82208

https://curl.se/docs/CVE-2026-82208.html

Vendor Advisories for CVE-2026-82208(2)

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

Affected Packages

(4 across 4 ecosystems)
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
curl—8.22.0-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
curl—8.22.0-r0—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
curl8.14.1-2 ... 8.22.0~rc3-1+exp1 (79 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
curl8.14.1-2 ... 8.22.0~rc3-1+exp1 (73 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 42× in last 7d / 72× 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.

  1. 2026-09-19 07:53 UTCVendor advisory
  2. 2026-09-19 07:53 UTCGHSA enrichment
  3. 2026-09-18 20:03 UTCEG score recompute
  4. 2026-09-18 20:03 UTCVendor advisory
  5. 2026-09-18 20:03 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 08:12 UTCVendor advisory
  8. 2026-09-18 08:12 UTCGHSA enrichment
  9. 2026-09-17 20:21 UTCEG score recompute
  10. 2026-09-17 20:21 UTCVendor advisory
  11. 2026-09-17 20:21 UTCGHSA enrichment
  12. 2026-09-17 06:52 UTCVendor advisory
  13. 2026-09-17 06:52 UTCGHSA enrichment
  14. 2026-09-16 19:01 UTCEG score recompute
  15. 2026-09-16 19:01 UTCVendor advisory
  16. 2026-09-16 19:01 UTCGHSA enrichment
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 07:10 UTCEG score recompute
  19. 2026-09-16 07:10 UTCVendor advisory
  20. 2026-09-16 07:10 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 19:19 UTCVendor advisory
  23. 2026-09-15 19:19 UTCGHSA enrichment
  24. 2026-09-15 07:28 UTCVendor advisory
  25. 2026-09-15 07:28 UTCGHSA enrichment
Show 47 more
  1. 2026-09-15 06:39 UTCEG score recompute
  2. 2026-09-15 06:39 UTCVendor advisory
  3. 2026-09-15 06:39 UTCGHSA enrichment
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-15 03:12 UTCEPSS rescore
  6. 2026-09-14 19:24 UTCVendor advisory
  7. 2026-09-14 19:24 UTCGHSA enrichment
  8. 2026-09-14 07:29 UTCVendor advisory
  9. 2026-09-14 07:29 UTCGHSA enrichment
  10. 2026-09-13 19:39 UTCEG score recompute
  11. 2026-09-13 19:39 UTCVendor advisory
  12. 2026-09-13 19:39 UTCGHSA enrichment
  13. 2026-09-13 07:48 UTCVendor advisory
  14. 2026-09-13 07:48 UTCGHSA enrichment
  15. 2026-09-12 19:58 UTCEG score recompute
  16. 2026-09-12 19:58 UTCVendor advisory
  17. 2026-09-12 19:58 UTCGHSA enrichment
  18. 2026-09-12 08:07 UTCVendor advisory
  19. 2026-09-12 08:07 UTCGHSA enrichment
  20. 2026-09-11 20:16 UTCVendor advisory
  21. 2026-09-11 20:16 UTCGHSA enrichment
  22. 2026-09-11 19:02 UTCEG score recompute
  23. 2026-09-11 19:02 UTCVendor advisory
  24. 2026-09-11 19:01 UTCGHSA enrichment
  25. 2026-09-11 14:53 UTCEPSS rescore
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-11 07:07 UTCGHSA enrichment
  28. 2026-09-10 19:16 UTCEG score recompute
  29. 2026-09-10 19:16 UTCGHSA enrichment
  30. 2026-09-10 07:26 UTCGHSA enrichment
  31. 2026-09-09 19:35 UTCVendor advisory
  32. 2026-09-09 19:35 UTCGHSA enrichment
  33. 2026-09-09 07:45 UTCEG score recompute
  34. 2026-09-09 07:45 UTCGHSA enrichment
  35. 2026-09-08 22:01 UTCEPSS rescore
  36. 2026-09-08 19:54 UTCEG score recompute
  37. 2026-09-08 19:54 UTCGHSA enrichment
  38. 2026-09-08 18:50 UTCEG score recompute▲ 7.50
  39. 2026-09-08 18:50 UTCVendor advisory
  40. 2026-09-08 18:50 UTCGHSA enrichment
  41. 2026-09-08 18:49 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  42. 2026-09-08 15:00 UTCEG score recompute
  43. 2026-09-08 15:00 UTCVendor advisory
  44. 2026-09-08 15:00 UTCGHSA enrichment
  45. 2026-09-06 18:20 UTCNVD update
  46. 2026-09-06 17:59 UTCEG score recompute
  47. 2026-09-06 17:58 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-82208?
CVE-2026-82208 is a high vulnerability published on September 6, 2026. With the wolfSSL backend, when CA caching is enabled and an CURLOPTSSLCTX_FUNCTION callback replaces the trust store, libcurl can silently reinstall the cached store after the callback returns. A certificate trusted by the cached store but rejected by the callback-selected store is then incorrectly…
When was CVE-2026-82208 disclosed?
CVE-2026-82208 was first published in the National Vulnerability Database on September 6, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82208 actively exploited?
CVE-2026-82208 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 63.6% of all scored CVEs.
What is the CVSS score of CVE-2026-82208?
CVE-2026-82208 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-82208?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82208, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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