CVE-2023-32681

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 3.0% (86th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 3.0%CVSS: 6.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Requests is a HTTP library. Since Requests 2.3.0, Requests has been leaking Proxy-Authorization headers to destination servers when redirected to an HTTPS endpoint. This is a product of how we use rebuild_proxies to reattach the Proxy-Authorization header to requests. For HTTP connections sent through the tunnel, the proxy will identify the header in the request itself and remove it prior to forwarding to the destination server. However when sent over HTTPS, the Proxy-Authorization header must be sent in the CONNECT request as the proxy has no visibility into the tunneled request. This results in Requests forwarding proxy credentials to the destination server unintentionally, allowing a malicious actor to potentially exfiltrate sensitive information. This issue has been patched in version 2.31.0.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100CISA SSVC

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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
3.0%
EPSS %ILE
86th
KEV
Not listed

CISA SSVCTrack 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). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

May 26, 2023

Last Modified

February 13, 2025

References (14)

Vendor Advisories for CVE-2023-32681(5)

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

Patch Availability(13)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntupython-requests-doc (2.28.1+dfsg-1ubuntu1.1) @ lunar2026-05-25ubuntu
ubuntupython3-requests (2.2.1-1ubuntu0.4+esm1) @ trusty2026-05-25ubuntu
ubuntupython3-pip-whl (25.0+dfsg-1ubuntu0.2) @ plucky2026-05-25ubuntu
ubuntupython-requests (2.18.4-2ubuntu0.1+esm1) @ bionic2026-05-25ubuntu
redhatpython-requests-0:2.20.0-3.el8_62024-01-18redhat
redhatpython39-devel:3.9-8090020230922213827.7484f1d12023-11-14redhat
redhatpython38-devel:3.8-8090020230810143931.d9f72c262023-11-14redhat
redhatpython27:2.7-8090020231003120724.449e760b2023-11-14redhat
redhatpython-requests-0:2.31.0-1.el8pc2023-11-08redhat
redhatrh-python38-python-requests-0:2.22.0-11.el72023-11-08redhat
redhatpython3x-requests-0:2.31.0-1.el8ap2023-08-21redhat
redhatpython-requests-0:2.20.0-3.el8_82023-08-08redhat
redhatpython-requests-0:2.25.1-7.el9_22023-08-01redhat

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)
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
requests2.21.0-1
  • every version up to 2.21.0-1+deb10u1: fixed in 2.21.0-1+deb10u1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
requests2.25.1+dfsg-2 ... 2.34.2-1 (14 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
requests2.28.1+dfsg-1 ... 2.34.2-1 (12 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
requests—
  • every version up to 2.31.0+dfsg-1: fixed in 2.31.0+dfsg-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
requests—
  • every version up to 2.31.0+dfsg-1: fixed in 2.31.0+dfsg-1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
requests2.10.0 ... 2.9.2 (66 versions)
  • 2.3.0 up to 2.31.0: fixed in 2.31.0
—

Weakness Classification(1)

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

Additional Vendor Advisories

(9)

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 6× in last 7d / 23× 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 183 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoChardikmodha/POC-CVE-2023-32681
    First seen Jul 22, 2023

    POC for the CVE-2023-32681

    Open source ↗

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

Frequently asked(5)

What is CVE-2023-32681?
CVE-2023-32681 is a medium vulnerability published on May 26, 2023. Requests is a HTTP library. Since Requests 2.3.0, Requests has been leaking Proxy-Authorization headers to destination servers when redirected to an HTTPS endpoint. This is a product of how we use rebuild_proxies to reattach the Proxy-Authorization header to requests. For HTTP connections sent…
When was CVE-2023-32681 disclosed?
CVE-2023-32681 was first published on May 26, 2023, with the most recent update on February 13, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-32681 actively exploited?
CVE-2023-32681 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.0% probability of exploitation in the next 30 days (86th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-32681?
CVE-2023-32681 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2023-32681?
A fix for CVE-2023-32681 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-32681 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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