CVE-2026-7168

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-05-13. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: Elevated riskExposed: 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)
EG Risk
55(Attend)
EG Risk 55/100SSVC: 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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

May 13, 2026

Last Modified

September 15, 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(3)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibcurl4t64 (8.18.0-1ubuntu2.1) @ resolute2026-09-15ubuntu
ubuntulibcurl4t64 (8.18.0-1ubuntu2.3) @ resolute2026-09-15ubuntu
redhatpatch2026-08-19redhat
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.

Affected Packages

(6 across 6 ecosystems)
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
curl—8.20.0-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
curl—8.20.0-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
curl7.74.0-1.3 ... 8.9.1-2~bpo12+1 (219 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
curl7.88.1-10 ... 7.88.1-10+deb12u9 (18 versions)7.88.1-10+deb12u15—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
curl8.14.1-2, 8.14.1-2+deb13u1, 8.14.1-2+deb13u2, 8.14.1-2+deb13u2~bpo13+1, 8.14.1-2+deb13u38.14.1-2+deb13u4—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
curl8.14.1-2 ... 8.20.0~rc3-1+exp1 (49 versions)8.20.0-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

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 11× in last 7d / 38× 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 231 total refreshes for this CVE.

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

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 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-2026-7168 actively exploited?
CVE-2026-7168 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 60.1% of all scored CVEs.
What is the CVSS score of CVE-2026-7168?
CVE-2026-7168 has a CVSS v3 base score of 5.3 (NVD).
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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