CVE-2020-13933

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

48.02% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 98.8% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-08-17 20:19Z6 YR AGO

Last updated

2024-08-04 12:32Z2 YR AGO

Reserved

2020-06-08

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base

Data version

5.1

Document digest

13b581316ee7dbcc46de06b9612b1695694a29f13be5b423d0fe8093cfdb769f

• lists.apache.orghttps://lists.apache.org/thread.html/r539f87706094e79c5da0826030384373f0041068936912876856835f%40%3Cdev.shiro.apache.org%3Ex_refsource_MISC
• lists.apache.org[geode-dev] 20200831 Proposal to bring GEODE-8456 (shiro upgrade) to support brancheshttps://lists.apache.org/thread.html/r18b45d560d76c4260813c802771cc9678aa651fb8340e09366bfa198%40%3Cdev.geode.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[geode-dev] 20200901 Re: Proposal to bring GEODE-8456 (shiro upgrade) to support brancheshttps://lists.apache.org/thread.html/r9ea6d8560d6354d41433ad006069904f0ed083527aa348b5999261a7%40%3Cdev.geode.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20200924 Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/r6ea0224c1971a91dc6ade1f22508119a9c3bd56cef656f0c44bbfabb%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20201004 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/r4c1e1249e9e1acb868db0c80728c13f448d07333da06a0f1603c0a33%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20201217 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/r8097b81905f2a113ebdf925bcbc6d8c9d6863c807c9ee42e1e7c9293%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20201219 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/rb5edf49cd1451475dbcf53826ba6ef1bb7872dd6493d6112eb0c2bad%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20201220 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/r4506cedc401d6b8de83787f8436aac83956e411d66848c84785db46d%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20201221 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/r70098e336d02047ce4d4e69293fe8d558cd68cde06f6430398959bc4%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20201222 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/rb47d88af224e396ee34ffb88ee99fb6d04510de5722cf14b7137e6bc%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20210130 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/r575301804bfac87a064359cf4b4ae9d514f2d10db7d44120765f4129%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20210316 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/r70b907ccb306e9391145e2b10f56cc6914a245f91720a17a486c020a%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20210331 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/r9d93dfb5df016b1a71a808486bc8f9fbafebbdbc8533625f91253f1d%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20210407 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/re25b8317b00a50272a7252c4552cf1a81a97984cc2111ef7728e48e0%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[shiro-dev] 20210504 Re: Request for assistance to backport CVE-2020-13933 fixhttps://lists.apache.org/thread.html/r852971e28f54cafa7d325bd7033115c67d613b112a2a1076817390ac%40%3Cdev.shiro.apache.org%3Emailing-listx_refsource_MLIST
• lists.debian.org[debian-lts-announce] 20210802 [SECURITY] [DLA 2726-1] shiro security updatehttps://lists.debian.org/debian-lts-announce/2021/08/msg00002.htmlmailing-listx_refsource_MLIST