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nvd[email protected]NVD:CVE-2021-26691
HistoryJun 10, 2021 - 7:15 a.m.

CVE-2021-26691

2021-06-1007:15:07
CWE-122
CWE-787
[email protected]
web.nvd.nist.gov
2

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.706 High

EPSS

Percentile

98.1%

JSON

In Apache HTTP Server versions 2.4.0 to 2.4.46 a specially crafted SessionHeader sent by an origin server could cause a heap overflow

Affected configurations

NVD
Node
apachehttp_serverRange2.4.0–2.4.46
Node
debiandebian_linuxMatch9.0
OR
debiandebian_linuxMatch10.0
Node
fedoraprojectfedoraMatch34
OR
fedoraprojectfedoraMatch35
Node
oracleenterprise_manager_ops_centerMatch12.4.0.0
OR
oracleinstantis_enterprisetrackMatch17.1
OR
oracleinstantis_enterprisetrackMatch17.2
OR
oracleinstantis_enterprisetrackMatch17.3
OR
oraclesecure_backupRange<18.1.0.1.0
OR
oraclezfs_storage_appliance_kitMatch8.8
Node
netappcloud_backupMatch-

References

Related

nessus 55
veracode 1
cvelist 2
cve 2
cbl_mariner 2
altlinux 2
osv 10
prion 2
f5 1
debiancve 2
openvas 29
ubuntucve 2
redhatcve 2
httpd 1
alpinelinux 1
ibm 7
oraclelinux 2
rocky 2
redhat 5
almalinux 2
nvd 1
ubuntu 2
centos 1
debian 2
photon 3
suse 2
slackware 1
amazon 3
rosalinux 2
mageia 1
gentoo 1
kaspersky 1
ics 1
freebsd 1
fedora 2
oracle 3
nessus
nessus
EulerOS 2.0 SP5 : httpd (EulerOS-SA-2021-2500)
2021-09-27 00:00:00
CBL Mariner 2.0 Security Update: httpd (CVE-2021-26691)
2023-03-20 00:00:00
CentOS 8 : httpd:2.4 (CESA-2021:3816)
2021-10-13 00:00:00
veracode
veracode
Denial Of Service (DoS)
2021-06-13 03:24:47
cvelist
cvelist
CVE-2021-26691 Apache HTTP Server mod_session response handling heap overflow
2021-06-10 07:10:23
CVE-2021-20325
2022-02-18 17:50:47
cve
cve
CVE-2021-26691
2021-06-10 07:15:07
CVE-2021-20325
2022-02-18 18:15:09
cbl_mariner
cbl_mariner
CVE-2021-26691 affecting package httpd 2.4.46-6
2021-07-08 21:56:40
CVE-2021-26691 affecting package httpd for versions less than 2.4.46-10
2022-04-09 06:51:57
altlinux
altlinux
Security fix for the ALT Linux 9 package apache2 version 1:2.4.48-alt3.1
2021-07-22 00:00:00
Security fix for the ALT Linux 10 package apache2 version 1:2.4.48-alt3.1
2021-07-22 00:00:00
osv
osv
CVE-2021-26691
2021-06-10 07:15:07
BIT-apache-2021-26691
2024-03-06 10:56:15
Important: httpd:2.4 security update
2021-10-12 15:53:03
prion
prion
Heap overflow
2021-06-10 07:15:00
Design/Logic Flaw
2022-02-18 18:15:00
f5
f5
K32305110 : mod_session vulnerability CVE-2021-26691
2022-04-15 00:00:00
debiancve
debiancve
CVE-2021-26691
2021-06-10 07:15:07
CVE-2021-20325
2022-02-18 18:15:09
openvas
openvas
Huawei EulerOS: Security Advisory for httpd (EulerOS-SA-2021-2500)
2021-09-28 00:00:00
Huawei EulerOS: Security Advisory for httpd (EulerOS-SA-2021-2463)
2021-09-24 00:00:00
Huawei EulerOS: Security Advisory for httpd (EulerOS-SA-2021-2381)
2021-09-15 00:00:00
ubuntucve
ubuntucve
CVE-2021-26691
2021-06-10 00:00:00
CVE-2021-20325
2022-02-18 00:00:00
redhatcve
redhatcve
CVE-2021-26691
2021-06-08 03:17:19
CVE-2021-20325
2021-11-09 09:06:32
httpd
httpd
Apache Httpd < 2.4.48 : mod_session response handling heap overflow
2021-03-01 00:00:00
alpinelinux
alpinelinux
CVE-2021-26691
2021-06-10 07:15:07
ibm
ibm
Security Bulletin: A security vulnerability has been identified in IBM WebSphere Application Server, which is a required product for IBM Tivoli Network Manager IP Edition (CVE-2021-26690, CVE-2021-26691)
2021-07-30 05:03:18
Security Bulletin: Multiple vulnerabilities in IBM HTTP Server used by WebSphere Application Server
2021-06-28 15:35:13
Security Bulletin: A security vulnerability has been identified in IBM WebSphere Application Server, which is a required product for IBM Tivoli Network Manager IP Edition (CVE-2021-26690, CVE-2021-26691)
2021-07-02 13:49:24
oraclelinux
oraclelinux
httpd:2.4 security update
2021-10-13 00:00:00
httpd security update
2022-01-18 00:00:00
rocky
rocky
httpd:2.4 security update
2021-10-12 15:53:03
httpd:2.4 security update
2021-11-09 19:25:44
redhat
redhat
(RHSA-2021:3816) Important: httpd:2.4 security update
2021-10-12 15:53:03
(RHSA-2021:4537) Important: httpd:2.4 security update
2021-11-09 19:25:44
(RHSA-2022:0143) Important: httpd security update
2022-01-17 08:16:34
almalinux
almalinux
Important: httpd:2.4 security update
2021-10-12 15:53:03
Important: httpd:2.4 security update
2021-11-09 19:25:44
nvd
nvd
CVE-2021-20325
2022-02-18 18:15:09
ubuntu
ubuntu
Apache HTTP Server vulnerabilities
2021-06-21 00:00:00
Apache HTTP Server vulnerabilities
2021-06-21 00:00:00
centos
centos
httpd, mod_ldap, mod_proxy_html, mod_session, mod_ssl security update
2022-01-25 17:31:14
debian
debian
[SECURITY] [DSA 4937-1] apache2 security update
2021-07-08 17:14:14
[SECURITY] [DLA 2706-1] apache2 security update
2021-07-09 08:50:21
photon
photon
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-2.0-0365
2021-06-30 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-1.0-0409
2021-07-01 00:00:00
Critical Photon OS Security Update - PHSA-2021-0409
2021-07-01 00:00:00
suse
suse
Security update for apache2 (important)
2021-07-10 00:00:00
Security update for apache2 (important)
2021-06-24 00:00:00
slackware
slackware
[slackware-security] httpd
2021-06-07 19:07:12
amazon
amazon
Medium: httpd24
2021-07-08 18:38:00
Medium: httpd
2021-07-01 00:59:00
Important: httpd
2021-06-16 20:37:00
rosalinux
rosalinux
Advisory ROSA-SA-2023-2158
2023-04-25 11:30:17
Advisory ROSA-SA-2023-2159
2023-04-25 11:49:15
mageia
mageia
Updated apache packages fix security vulnerabilities
2021-06-16 23:22:25
gentoo
gentoo
Apache: Multiple vulnerabilities
2021-07-17 00:00:00
kaspersky
kaspersky
KLA12369 Multiple vulnerabilities in Apache HTTP Server
2021-06-01 00:00:00
ics
ics
Mitsubishi Electric MELSOFT iQ AppPortal
2022-05-12 12:00:00
freebsd
freebsd
Apache httpd -- Multiple vulnerabilities
2021-06-09 00:00:00
fedora
fedora
[SECURITY] Fedora 35 Update: httpd-2.4.49-1.fc35
2021-09-24 20:56:12
[SECURITY] Fedora 34 Update: httpd-2.4.49-1.fc34
2021-09-20 13:58:04
oracle
oracle
Oracle Critical Patch Update Advisory - October 2022
2022-10-18 00:00:00
Oracle Critical Patch Update Advisory - October 2021
2021-10-19 00:00:00
Oracle Critical Patch Update Advisory - January 2022
2022-01-18 00:00:00

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.706 High

EPSS

Percentile

98.1%

JSON
Related for NVD:CVE-2021-26691
nessus55veracode1cvelist2cve2cbl_mariner2altlinux2osv10prion2f51debiancve2openvas29ubuntucve2redhatcve2httpd1alpinelinux1ibm7oraclelinux2rocky2redhat5almalinux2nvd1ubuntu2centos1debian2photon3suse2slackware1amazon3rosalinux2mageia1gentoo1kaspersky1ics1freebsd1fedora2oracle3