CVE-2026-7168

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-05-13. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Elevated
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

A fix is available — apply it.

Successfully using libcurl to do a transfer over a specific HTTP proxy (proxyA) with Digest authentication and then changing the proxy host to a second one (proxyB) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Proxy-Authorization: header field meant for proxyA, to proxyB.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
37.5%
KEV
Not listed

Published

May 13, 2026

Last Modified

June 23, 2026

Advisory Details (4)

Auto-updated Jun 17, 2026
No patch confirmed yet.
generic

HackerOne

https://hackerone.com/reports/3697719
generic

oss-security - [ADVISORY] curl: CVE-2026-7168: cross-proxy Digest auth state leak

http://www.openwall.com/lists/oss-security/2026/04/29/14
generic
https://curl.se/docs/CVE-2026-7168.json
generic

curl - cross-proxy Digest auth state leak - CVE-2026-7168

https://curl.se/docs/CVE-2026-7168.html

Vendor Advisories for CVE-2026-7168(2)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibcurl4t64 (8.18.0-1ubuntu2.1) @ resolute2026-06-27ubuntu
redhatcurl-main-8.20.0-2.hum12026-05-19redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 12× in last 7d / 67× 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.

Showing the most recent 100 of 127 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-7168?
CVE-2026-7168 is a medium vulnerability published on May 13, 2026. Successfully using libcurl to do a transfer over a specific HTTP proxy (proxyA) with Digest authentication and then changing the proxy host to a second one (proxyB) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Proxy-Authorization: header field meant for proxyA,…
When was CVE-2026-7168 disclosed?
CVE-2026-7168 was first published in the National Vulnerability Database on May 13, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7168 actively exploited?
CVE-2026-7168 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7168?
CVE-2026-7168 has a CVSS v3.1 base score of 5.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-7168?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7168, 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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