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.
CVE-2023-32681
“—” beside the score: it is equal to NVD's CVSS score.
Score 6.1 from GitHub Security Advisory (severity: MODERATE) published 2023-05-22. NVD baseline CVSS 6.1; sources differ by 0.0.
Also known asEUVD-2023-0227 (ENISA EUVD) · GHSA-j8r2-6x86-q33q (GitHub Security Advisories)Source: ENISA EUVD
- Public exploit or proof-of-concept code is available
A fix is available — apply it.
- CVSS v3
- 6.1
- EG Score
- 6.1MEDIUMmedium confidence
- EG Risk
- 43EG Risk 43/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity61% × 45%Impact severity (EG Severity): CVSS 6.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 3.0%
- EPSS %ILE
- 87th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (6.1): severity, escalated by confirmed exploitation. This CVE's 6.1 is its impact severity (EG Severity), not escalated.
- EG Severity
- 6.1 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 3.0% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
May 26, 2023
Last Modified
February 13, 2025
References (7)
- security-advisories@github · CVE Programhttps://github.com/psf/requests/commit/74ea7cf7a6a27a4eeb2ae24e162bcc942a6706d5Patch
- security-advisories@github · CVE Programhttps://github.com/psf/requests/releases/tag/v2.31.0Release Notes
- security-advisories@github · CVE Programhttps://github.com/psf/requests/security/advisories/GHSA-j8r2-6x86-q33qVendor Advisory
- security-advisories@github · CVE Programhttps://lists.debian.org/debian-lts-announce/2023/06/msg00018.html
- security-advisories@github · CVE Programhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AW7HNFGYP44RT3DUDQXG2QT3OEV2PJ7Y/Mailing List · Third Party Advisory
- security-advisories@github · CVE Programhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KOYASTZDGQG2BWLSNBPL3TQRL2G7QYNZ/
- security-advisories@github · CVE Programhttps://security.gentoo.org/glsa/202309-08
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.
- RHSA-2023:7050Red Hat Product SecurityMedium
Red Hat Security Advisory: python38:3.8 and python38-devel:3.8 security update
- RHSA-2023:6818Red Hat Product SecurityHigh
Red Hat Security Advisory: Satellite 6.14 security and bug fix update
- RHSA-2023:6793Red Hat Product SecurityHigh
Red Hat Security Advisory: rh-python38-python security update
- RHSA-2023:4693Red Hat Product SecurityMedium
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.4 Product Security and Bug Fix Update
- CVE-2023-32681Microsoft Security Response Center (MSRC)Medium
Unintended leak of Proxy-Authorization header in requests
Patch Availability(14)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python-requests-doc (2.27.1+dfsg-1ubuntu2.1) @ kinetic | 2026-10-24 | ubuntu |
| ubuntu | python3-requests (2.32.3+dfsg-1ubuntu1.1) @ oracular | 2026-10-24 | ubuntu |
| ubuntu | python3-pip-whl (22.0.2+dfsg-1ubuntu0.7) @ jammy | 2026-10-24 | ubuntu |
| ubuntu | python-requests (2.9.1-3ubuntu0.1+esm1) @ xenial | 2026-10-24 | ubuntu |
| redhat | python-requests-0:2.20.0-3.el8_6 | 2024-01-18 | redhat |
| redhat | python39-devel:3.9-8090020230922213827.7484f1d1 | 2023-11-14 | redhat |
| redhat | python38-devel:3.8-8090020230810143931.d9f72c26 | 2023-11-14 | redhat |
| redhat | python27:2.7-8090020231003120724.449e760b | 2023-11-14 | redhat |
| redhat | python-requests-0:2.31.0-1.el8pc | 2023-11-08 | redhat |
| redhat | rh-python38-python-requests-0:2.22.0-11.el7 | 2023-11-08 | redhat |
| redhat | python3x-requests-0:2.31.0-1.el8ap | 2023-08-21 | redhat |
| redhat | python-requests-0:2.20.0-3.el8_8 | 2023-08-08 | redhat |
| redhat | python-requests-0:2.25.1-7.el9_2 | 2023-08-01 | redhat |
| pip | requests @ 2.31.0 (fixes >= 2.3.0, < 2.31.0) | — | ghsa |
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)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| requests | 2.21.0-1 |
| — |
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| requests | 2.25.1+dfsg-2 ... 2.34.2-1 (14 versions) |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| requests | 2.28.1+dfsg-1 ... 2.34.2-1 (12 versions) |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| requests | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| requests | — |
| — |
PyPI(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| requests | 2.10.0 ... 2.9.2 (66 versions) |
| — |
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.
- Red HatRHSA-2023:4350MODERATE2023-05-23
RHSA-2023:4350 — Moderate
- Red HatRHSA-2023:4520MODERATE2023-05-23
RHSA-2023:4520 — Moderate
- Red HatRHSA-2023:7034MODERATE2023-05-23
RHSA-2023:7034 — Moderate
- Red HatRHSA-2023:7042MODERATE2023-05-23
RHSA-2023:7042 — Moderate
- Red HatRHSA-2024:0299MODERATE2023-05-23
RHSA-2024:0299 — Moderate
- UbuntuUSN-6155-1MEDIUM
Requests vulnerability
- UbuntuUSN-6155-2MEDIUM
Requests vulnerability
- UbuntuUSN-7568-1MEDIUM
Requests vulnerabilities
- UbuntuUSN-7762-1MEDIUM
pip vulnerabilities
Data Freshness Timeline
(refreshed 8× in last 7d / 37× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 96 of 211 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 115 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-02 16:39 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-11-01 08:20 UTCGHSA enrichmentGHSA-j8r2-6x86-q33q · GitHub severity MODERATE · GitHub CVSS 6.1
- 2026-11-01 08:20 UTCEG score recompute
- 2026-10-31 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-30 16:31 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-29 16:30 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-28 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-27 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-26 16:28 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-25 17:42 UTCEG score recompute
- 2026-10-25 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-24 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-24 14:28 UTCEG score recompute
- 2026-10-24 14:28 UTCVendor advisory
- 2026-10-23 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-22 16:31 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-21 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-20 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-19 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-18 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-18 08:00 UTCEG score recompute
- 2026-10-17 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-16 16:35 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-15 16:29 UTCEPSS rescoreEPSS 3.0% · 87th percentile
- 2026-10-14 16:29 UTCEPSS rescoreEPSS 3.0% · 86th percentile
Show 71 moreShow fewer
- 2026-10-14 04:54 UTCOSV refresh
- 2026-10-13 16:30 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-10-12 18:26 UTCEG score recompute
- 2026-10-12 16:30 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-10-11 21:52 UTCEG score recompute
- 2026-10-11 13:45 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-10-10 19:57 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-10-09 20:05 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-10-08 17:06 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-10-07 23:46 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-10-06 15:15 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-10-05 17:41 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-10-03 14:23 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-30 16:23 UTCEG score recompute
- 2026-09-30 15:01 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-29 15:16 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-28 13:49 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-27 13:42 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-26 15:55 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-26 00:22 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-24 14:01 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-23 13:45 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-23 11:23 UTCOSV refresh
- 2026-09-22 14:45 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-16 14:05 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-13 16:44 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-12 14:58 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-11 14:50 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-11 09:34 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-08 21:57 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-07 15:59 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-06 13:45 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-05 15:26 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-04 13:58 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-04 05:59 UTCOSV refresh
- 2026-09-04 05:04 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-02 14:09 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-09-01 13:51 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-30 19:15 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-30 01:20 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-28 21:38 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-27 14:23 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-26 14:43 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-25 13:46 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-24 14:14 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-23 00:17 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-21 23:47 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-20 22:53 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-19 17:02 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-18 13:46 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-17 16:59 UTCOSV refresh
- 2026-08-17 13:45 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-16 14:54 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-16 02:12 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-15 01:28 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-13 21:58 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-12 13:48 UTCEPSS rescoreEPSS 3.0% · 86th percentile
- 2026-08-11 13:39 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-08-08 16:34 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-08-07 16:24 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-08-06 13:44 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-08-05 19:15 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-08-04 15:07 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-08-04 10:35 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-08-03 10:34 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-08-02 12:27 UTCOSV refresh
- 2026-08-02 02:25 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-08-01 04:13 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-07-30 16:26 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-07-30 01:28 UTCEPSS rescoreEPSS 3.0% · 85th percentile
- 2026-07-28 15:34 UTCEPSS rescoreEPSS 3.0% · 85th percentile
Publicly available exploits
(1 reference)Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.
- GitHub PoChardikmodha/POC-CVE-2023-32681Published Jul 22, 2023
POC for the CVE-2023-32681
Open source ↗
Related CVEs(same product + same vendor + same CWE)
Same product
7 shownDebian:11:requests
Same vendor
10 shownredhat:RHSA-2023:6793 · redhat:RHSA-2023:4693 · ubuntu:USN-7568-1
- CVE-2007-4559EG 9.8EPSS p98CRITICAL
- CVE-2023-36053EG 7.5HIGH
- CVE-2023-23931NVD 4.8EG 6.5MEDIUM
- CVE-2024-47081EG 5.3MEDIUM
- CVE-2023-40267EG 9.8CRITICAL
- CVE-2023-31047EG 9.8CRITICAL
- CVE-2022-2068NVD 7.3EG 9.8EPSS p100CRITICAL
- CVE-2022-1292NVD 7.3EG 9.8EPSS p100CRITICAL
- CVE-2022-3874NVD 8.0EG 9.1CRITICAL
- CVE-2023-0118EG 9.1CRITICAL
Frequently asked(5)
What is CVE-2023-32681?
When was the CVE record for CVE-2023-32681 published?
Is CVE-2023-32681 actively exploited?
What is the CVSS score of CVE-2023-32681?
How do I remediate CVE-2023-32681?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-32681
Is Your Infrastructure Affected by CVE-2023-32681?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.