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
Elevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 5.3Exploit: Elevated riskExposed services: Not assessed

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
5.3MEDIUMmedium confidence
EG Risk
55
EG Risk 55/100

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%
EPSS PROB
0.6%
EPSS %ILE
46th
KEV
Not listed

Published

May 13, 2026

Last Modified

September 15, 2026

Advisory Details (4)

Auto-updated Jun 17, 2026
Patch available.
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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
curl—
  • 7.12.0 up to 8.20.0-r0: fixed in 8.20.0-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • 7.12.0 up to 8.20.0-r0: fixed in 8.20.0-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
curl7.74.0-1.3 ... 8.9.1-2~bpo12+1 (219 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
curl7.88.1-10 ... 7.88.1-10+deb12u9 (18 versions)
  • every version up to 7.88.1-10+deb12u15: fixed in 7.88.1-10+deb12u15
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
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+deb13u3
  • every version up to 8.14.1-2+deb13u4: fixed in 8.14.1-2+deb13u4
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
curl8.14.1-2 ... 8.20.0~rc3-1+exp1 (49 versions)
  • every version up to 8.20.0-1: fixed in 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 7× in last 7d / 34× 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 251 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

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 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 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-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?
A fix for CVE-2026-7168 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-7168 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-7168

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